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Compare which of the two drivers, in eac...

Compare which of the two drivers, in each case given below, would have to apply brakes harder in order to stop their vehicle. Give a reason for each answer. (Assume all vehicles are moving at the same speed and have similar brakes and tyres).
A person driving a truck on a smooth road in heavy rain or a person driving a car on a smooth road in heavy rain.

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To determine which driver would have to apply the brakes harder to stop their vehicle, we need to analyze the situation based on the principles of friction and the weight of the vehicles involved. ### Step-by-Step Solution: 1. **Identify the Vehicles and Conditions**: - We have two vehicles: a truck and a car. - Both vehicles are moving at the same speed and are on a smooth road in heavy rain. ...
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The driver of a car moving with a speed of 10 ms^(-1) sees a red light ahead, applies brakes and stops after covering 10 m distance. If the same car were moving with a speed of 20 ms^(-1) the same driver would have stopped the car after covering 30 m distance. Within what distance the car can be stopped if traveling with a velocity of 15 ms^(-1) Assume the same reaction time and the same deceleration in each case

Directions: Direction: Study the following information carefully and answer the question given below. Ten vehicles viz. Cycle, Scooter, Car, Auto, Train, Boat, Truck, Helicopter, Motorcycle and Aeroplane are given with their speeds viz. 9, 17, 30, 35, 45, 55, 70, 224, 367 and 575 but not necessarily in the same order. These vehicles are placed in two rows in such a way that five vehicles are in each row and each vehicle from one row is exactly opposite a vehicle from the other row. All the vehicles are placed from east to west in the increasing order of their speeds. (in km/hr) The car is sitting third to the extreme end and facing North. The vehicle car is facing immediate neighbour of boat whose speed is 17 km/hr. Boat is somewhere left of truck. Motorcycle and Helicopter are immediate neighbours of each other and one of them has even number speed and the other has odd number speed. Only one vehicle comes in between Train and Boat whose (boat and train) speeds are neither 55 nor 35 km/hr. Cycle and boat are immediate neighbours of each other. The one who faces Train sits third to the Scooter who has a speed of multiple of 5. Truck faces car. Aeroplane is sitting at the extreme end and has the highest speed. The ones who have speed of 35 and 45 km/hr are immediate neighbours of each other. Motorcycle has more speed than Train. Truck has speed 55 km/hr. Motorcycle is not at the extreme end. Find the difference between speed of motorcycle and truck?

Directions: Direction: Study the following information carefully and answer the question given below. Ten vehicles viz. Cycle, Scooter, Car, Auto, Train, Boat, Truck, Helicopter, Motorcycle and Aeroplane are given with their speeds viz. 9, 17, 30, 35, 45, 55, 70, 224, 367 and 575 but not necessarily in the same order. These vehicles are placed in two rows in such a way that five vehicles are in each row and each vehicle from one row is exactly opposite a vehicle from the other row. All the vehicles are placed from east to west in the increasing order of their speeds. (in km/hr) The car is sitting third to the extreme end and facing North. The vehicle car is facing immediate neighbour of boat whose speed is 17 km/hr. Boat is somewhere left of truck. Motorcycle and Helicopter are immediate neighbours of each other and one of them has even number speed and the other has odd number speed. Only one vehicle comes in between Train and Boat whose (boat and train) speeds are neither 55 nor 35 km/hr. Cycle and boat are immediate neighbours of each other. The one who faces Train sits third to the Scooter who has a speed of multiple of 5. Truck faces car. Aeroplane is sitting at the extreme end and has the highest speed. The ones who have speed of 35 and 45 km/hr are immediate neighbours of each other. Motorcycle has more speed than Train. Truck has speed 55 km/hr. Motorcycle is not at the extreme end. What is the sum of speeds of car and cycle?

Directions: Direction: Study the following information carefully and answer the question given below. Ten vehicles viz. Cycle, Scooter, Car, Auto, Train, Boat, Truck, Helicopter, Motorcycle and Aeroplane are given with their speeds viz. 9, 17, 30, 35, 45, 55, 70, 224, 367 and 575 but not necessarily in the same order. These vehicles are placed in two rows in such a way that five vehicles are in each row and each vehicle from one row is exactly opposite a vehicle from the other row. All the vehicles are placed from east to west in the increasing order of their speeds. (in km/hr) The car is sitting third to the extreme end and facing North. The vehicle car is facing immediate neighbour of boat whose speed is 17 km/hr. Boat is somewhere left of truck. Motorcycle and Helicopter are immediate neighbours of each other and one of them has even number speed and the other has odd number speed. Only one vehicle comes in between Train and Boat whose (boat and train) speeds are neither 55 nor 35 km/hr. Cycle and boat are immediate neighbours of each other. The one who faces Train sits third to the Scooter who has a speed of multiple of 5. Truck faces car. Aeroplane is sitting at the extreme end and has the highest speed. The ones who have speed of 35 and 45 km/hr are immediate neighbours of each other. Motorcycle has more speed than Train. Truck has speed 55 km/hr. Motorcycle is not at the extreme end. What is the speed of auto?

Directions: Direction: Study the following information carefully and answer the question given below. Ten vehicles viz. Cycle, Scooter, Car, Auto, Train, Boat, Truck, Helicopter, Motorcycle and Aeroplane are given with their speeds viz. 9, 17, 30, 35, 45, 55, 70, 224, 367 and 575 but not necessarily in the same order. These vehicles are placed in two rows in such a way that five vehicles are in each row and each vehicle from one row is exactly opposite a vehicle from the other row. All the vehicles are placed from east to west in the increasing order of their speeds. (in km/hr) The car is sitting third to the extreme end and facing North. The vehicle car is facing immediate neighbour of boat whose speed is 17 km/hr. Boat is somewhere left of truck. Motorcycle and Helicopter are immediate neighbours of each other and one of them has even number speed and the other has odd number speed. Only one vehicle comes in between Train and Boat whose (boat and train) speeds are neither 55 nor 35 km/hr. Cycle and boat are immediate neighbours of each other. The one who faces Train sits third to the Scooter who has a speed of multiple of 5. Truck faces car. Aeroplane is sitting at the extreme end and has the highest speed. The ones who have speed of 35 and 45 km/hr are immediate neighbours of each other. Motorcycle has more speed than Train. Truck has speed 55 km/hr. Motorcycle is not at the extreme end. Find hte odd one out?

Directions: Direction: Study the following information carefully and answer the question given below. Ten vehicles viz. Cycle, Scooter, Car, Auto, Train, Boat, Truck, Helicopter, Motorcycle and Aeroplane are given with their speeds viz. 9, 17, 30, 35, 45, 55, 70, 224, 367 and 575 but not necessarily in the same order. These vehicles are placed in two rows in such a way that five vehicles are in each row and each vehicle from one row is exactly opposite a vehicle from the other row. All the vehicles are placed from east to west in the increasing order of their speeds. (in km/hr) The car is sitting third to the extreme end and facing North. The vehicle car is facing immediate neighbour of boat whose speed is 17 km/hr. Boat is somewhere left of truck. Motorcycle and Helicopter are immediate neighbours of each other and one of them has even number speed and the other has odd number speed. Only one vehicle comes in between Train and Boat whose (boat and train) speeds are neither 55 nor 35 km/hr. Cycle and boat are immediate neighbours of each other. The one who faces Train sits third to the Scooter who has a speed of multiple of 5. Truck faces car. Aeroplane is sitting at the extreme end and has the highest speed. The ones who have speed of 35 and 45 km/hr are immediate neighbours of each other. Motorcycle has more speed than Train. Truck has speed 55 km/hr. Motorcycle is not at the extreme end. Who among the follwoing is placed to the immediate left to boat?

PEARSON IIT JEE FOUNDATION-FRICTION-Classroom Corner (Long Answer Type Questions)
  1. Explain the difference between static friction and sliding friction wi...

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  2. Why does an object of greater mass experience more friction than an ob...

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  3. Look at the pictures given below. Name and define the type of friction...

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  4. Why is static friction greater than sliding friction?

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  5. State any three advantages and disadvantages of friction.

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  6. Describe any three ways in which friction between surfaces can be redu...

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  7. The magnitude of frictional force can never be greater than the magnit...

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  8. Explain how the wheel was a significant historical invention, in terms...

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  9. Compare which of the two drivers, in each case given below, would have...

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  10. Compare which of the two drivers, in each case given below, would have...

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  11. Compare which of the two drivers, in each case given below, would have...

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  12. Case 1: If you take a ball and push it so that it rolls across a smoot...

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  13. Case 1: If you take a ball and push it so that it rolls across a smoot...

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  14. Give examples to show that friction is both a friend and a foe.

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  15. Case 1: If you take a spring balance and a brick. Tie the spring balan...

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  16. Case 1: If you take a spring balance and a brick. Tie the spring balan...

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  17. Explain why objects moving in fluids must have special shapes.

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  18. Why does friction occur? Justify your answer.

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  19. Explain why objects moving in fluids must have special shapes.

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  20. Why do we shape aeroplanes like that of bird?

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