Question

1. A car is travelling at 20 km/h, it speeds upto 60 km/h in 6 seconds. What is its acceleration?

2. A car accelerates from 6 ms–1 to  16 ms–1 in 10 sec.
Calculate 
 (a)  the acceleration and
 (b)  the distance covered by the car in that time.


3. A toy car accelerates from 3m/s to 5m/s in 5 s. What is its acceleration?

4. Which speed is greater: 30 m/s or 30 km/h?

5. The driver of train A travelling at a speed of 54 kmh-1 applies brakes and retards the train uniformly. The train stops in 5 seconds.
Calculate the acceleration.

6. A body starts to slide over a horizontal surface with an initial velocity of 0.5 m/s. Due to friction, its velocity decreases at the rate 0.05 m/s2. How much time will it take for the body to stop?

7. A ball hits the wall horizontally at 6m/s. It rebounds horizontally at 4.4m/s. The ball was in contact with wall for 0.040 seconds.
What is the acceleration of the ball ?​

Answer 1

Answer:

• please refers to the all images given above