Question

Question 18
Draw a speed versus time graph of a stone thrown vertically upwards and then coming downwards after attaining the maximum height.

Answer 1

1. A stone is thrown vertically upwards with some initial velocity, which goes on decreasing due to downward acceleration on the stone.
2. After attaining a maximum height, the velocity of the stone becomes zero and it starts to fall freely towards the surface of the earth.
3. During its return to the surface of earth, the velocity of the stone increases due to acceleration due to gravity on the stone with time.

Thus,

1. The following graph represents the motion of a stone thrown vertically upwards and then coming downwards after attaining the maximum height.