Question

1. A cur increases its speed from 20 kmh to 50 kmh in 10 seconds. What is its acceleration"?
2. A ship is moving at a speed of 56km/h. One second later, it is moving at 58kmh. What is its
acceleration?
3. A scooter acquires a velocity of 36kmh in 10 seconds just after the start. Calculate the acceleration of
the scoter
4. A racing car has uniform acceleration of 4m's What distance will it cover in 10 seconds after start?
S. A car acquires a velocity of 72km/h in 10 seconds starting from rest. Find (a) the acceleration (b) the
average vclocity (c) the distance travelled in this time.
6. A body is accelerating at a constant rate of 10ms. If the body starts from rest, how much distance
will it cover in 2 seconds?
7. An object undergoes an acceleration of Sm's starting from rest. Find the displacement and time.
8. A moving train is brought to rest within 20 seconds by applying brakes. Find the initial velocity, if the
retardation due to brakes is 2ms.
9. A car accelerates uniformly from 18kmh to 36 kmh in 5 seconds. Calculate (1) acceleration and (i)
the distance covered by the car in that time.
10. A body starts to slide over a horizontal surface with an initial velocity of 05 ms. Due to friction, its
velocity decreases at the rate of 0.05 ms. How much time will it take for the body to stop?
11. A train starting from the rest moves with a uniform acceleration of 0.2 m's for 5 minutes. Calculate
the speed acquired and the distance travelled in this time.
12. A bus was moving with a speed of 54 kmh. On applying brakes, it stopped in 8 seconds. Calculate
the acceleration and the distance travelled before stopping
13.A motor cycle moving with a speed of 5 m's is subjected to an acceleration of 0.2 ms. calculate the
speed of the motor cycle after 10 seconds and the distance travelled in this time,
14. The brakes applied to a car produce an acceleration of 6 m's in the opposite direction to the motion
If the car takes 2 seconds to stop after the application of brakes, calculate the distance it travels during
this time
15.A train starting from rest attains a velocity of 72 kmh in 5 minutes. Assuming that the acceleration is
uniform, find the acceleration and (11) the distance travelled by the train for attaining this velocity​

Answer 1

Answer:

3 is ans of firt ques as acceleration is u minus v divided by t