Ahmed starts from Delhi at 8 AM to Jaipur. If his car is running at the speed of `x\ k m//h r` and at 1PM he observes that he is 20km away from Jaipur. Find the distance between Delhi and Jaipur.

One day a boy walked from his house to his school at the speed of 4 km/hr and he reached ten minutes late to the school. Next day, he ran at the speed of 8 km/hr and was 5 minutes early to the school. Find the distance between his house and school.

A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has a speed of 18 km //h while the other has the speed of 27 km //h . The bird starts moving from first car towards the other and is moving with the speed of 36 km //h and when the two cars were separated by 36 km . What is the total distance covered by the bird ? What is the total displacement of the bird ?

A driver takes 0.20 s to apply the brakes after he sees a need for it. This is called the reaction time of the driver. If he ils driving a car at a speed of 54 km/h and the brakes cause a deceleration of 6.0 m/s^2 , find the distance travelled by the car after he sees the need to put the brakes on.

A man starts from his home at 8.00 am to his office. He walks with a speed of 2 ms^(-1) on a road upto his office 3.0 km away from his hom. He stays in the office upto 4.00 pm and returns to his home by which moves non-stop with a speed of 10 ms^(-1) . Calculate (i) the time taken by man to reach his office and (ii) time taken by man to reach his home. Also plot x-t graph of his motion.

A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road . One car has speed of 27 km h^(-1) while the other has the speed of 18 km h^(-1) . The bird starts moving from the first car towards the other and is moving with the speed of 36 km h^(-1) when the two cars were separated by 36 km . The total distance covered by the bird is

A train moving a uniform velocity of 180km/h, approaches another train standing on a platform. An observer O moves with a uniform velocity of 36km/h towards , as shown in figure. Both the trains are blowing whistles of same frequency 120 Hz. When O is 600 m away from and distance between and is 800 m, the number of beats heard by O is x. Find x. [Speed of the sound = 330 m/s]

A train takes 3 h to travel from Agra to Delhi with a uniform speed of 65 km h^(-1) '. Find the distance between the two cities.

A driver having a definite reaction time is capable of stopping his car over a distance of 30 m on seeing a red traffic signal, when the speed of the car is 72 km/hr andover a distance of 10 m when the speed is 36 km/hr. Find the distance over which he can stop the car if it were running at a speed of 54 km/hr. Assume that his reaction time and the deceleration of the car remains same in all the three cases.

Ajay starts from his house to his office by his car which is 15 km away at an average speed of 45 km per hour. On the way back, he takes a route longer by 5 km since there is heavy traffic on the regular route. If he reaches home in the same time as the time he took to reach office in the morning, find his speed on the return journey.

Mohan drives to a marketplace which is 30 km away from his home at an average speed of 75 km per hour. After he completes his shopping, he decides to visit his friend. If he drives at the same speed as on his way to the market and it takes him 30 minutes to reach his friend's house, find the distance between the market and the friend's house.