Question

15.What can you say about the motion of a body if:

(a) Its displacement-time graph is a straight line?

(b) Its velocity-time graph is a straight line?​

Answer 1

Explanation:

If the displacement-time graph is a straight line parallel to time axis, then we can say that the body is at rest.

Answer 2

Explanation:

In a displacement time graph when the line is straight and parallel to the x axis(time axis), it indicates that the position of the body hasn't changed at all but in a velocity time graph it indicates that the velocity is constant.