Question

Fig. shows the displacement-time graph for the motion of a body. Use it to calculate the velocity of body at $t=1s,2s$ and $3s$, then draw the velocity-time graph for the body.

Answer 1

Slope of displacement-time graph represents the velocity. Since slope of displacement-time graph has a uniform value of $2m/s$, velocity at $t=1s,2s$ and $3s$ will be $2m/s$.