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

A motorcyclist drives from A to B with a uniform speed of 30 km h–1 and returns back with a speed of 20 km h–1. Find its average speed.

The velocity-time graph (Fig. 8.5) shows the motion of a cyclist. Find

(i) its acceleration

(ii) its velocity and

(iii) the distance covered by the cyclist in 15 seconds.

An object is dropped from rest at a height of 150 m and simultaneously another object is dropped from rest at a height 100 m. What is the difference in their heights after 2 s if both the objects drop with same accelerations? How does the difference in heights vary with time?

An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s. What will be the velocity after 7 s from the start?