A man used his car. The initial and final odometer readings are 4849 and 5549 respectively. The journey time is 25h. What is his average speed during the journey?

Deepak went on his bike from Chennai to Thiruvallur at a speed of 60 km/hr and came back at a speed of 40 km/hr. What is his average speed for entire journey.

When a person leaves his home for sightseeing by his car, the meter reads 12352 km. When he returns home after two hours the reading is 12416 km. A. What is the average speed of the car during this period? B. What is the average velocity?

A car covers a distance of 80 km at a speed of 60 km/hr and another 140 km at a speed of 70 km/hr. What is the average speed of the journey ?

A man at a speed of 6 km/hr for 1 km and 8 km/hr for the next 1 km. What is t his average speed for the walk of 2 km?

A car covers half of its journey with a speed of 10ms^(-1) and the other half by 20 ms^(-1) . The average speed of car during the total journey is

A man is standing between two vertical walls 680 m apart. He claps his hands and hears two distinct echoes after 0.9 se,conds and 1.1 second respectively. What is the speed of sound in the air? Given : Time of first echo, t_i = 0.9 s Time of second echo, t_2 = 1.1 s Distance between man and wall, d = 680 m To find : Speed of sound in air, V = ?

(i)A man is standing between two vertical wall 680 m apart. He claps his hands and hears two distinct echoes after 0.9 seconds and 1.1 seconds respectively .What is the speed of sound in the air ? (ii) An electric heater of resistance 5 Omega is connected to an electric source .If a current of 6 A flows through the heater then find the amount of heat produced in 5 minutes.

A car is moving at a constant speed of 40 km/h along a straight road which heads towards a large vertical wall and makes a sharp 90^0 turn by the side of the wall. A fly flyingat constant speed of 100 km/h, starts from the wall towrds the car t an instant when the car is 20 km away,flies until it reaches the glasspane of the car and returns to teh wll at teh same speed. It continues to fly between the car and teh wall time the car makes the 90^0 turn. a. What is the total distance the fly has travelled during the period?b. How many trips has it made between the car and the wall?