Time-velocity graph of a body is shown in the fig. Find its acceleration in m/s2.
As it is clear from the figure,
At t = 0 s, v = 20 m/s
At t = 4 s, v = 80 m/s
Time-velocity graph of a particle is shown in fig. Find its instantaneous acceleration at following intervals : (i) at t = 3s (ii) at t = 6s (iii) at t = 9s