Question

A ball is placed at rest at the top of a hill. It travels with constant acceleration for the first 15 second and reaches a speed of 5m/s. It then decelerates at a constant rate of 0.1m/s2 for 20 seconds. It then travels at a constant speed for a further 20 seconds. Draw a speed-time graph for the ball over the course of this 50 seconds.​

Answer 1

Explanation:

A ball is placed at rest at the top of a hill. It travels with constant acceleration for the first 15 second and reaches a speed of 5m/s. It then decelerates at a constant rate of 0.1m/s2 for 20 seconds. It then travels at a constant speed for a further 20 seconds. Draw a speed-time graph for the ball over the course of this 50 seconds.