Question

The following velocity-time graph shows the motion of a cyclist. Find (i) its acceleration, (ii) its velocity and (iii) the distance covered by the cyclist in 15 seconds.

Answer 1

(a)Since velocity is not changing, acceleration is equal to zero.

(b) Reading the graph, $velocity=20m{s}^{-1}$

(c) s = area of the figure enclosed under v-t graph. Distance covered in 15s, $s=ut=20\times 15=300m$