The position-time graph for a particle moving along a straight line is shown in the figure. The total distance travelled by it in time t = 0 to t = 10 s is:
A car starts from rest and accelerates uniformly for 10 seconds to a velocity of 20 m/s. It then moves with uniform velocity for 20 seconds and finally comes to rest in 5 seconds under uniform retardation. The total distance covered by the car is:
The position-time graph for a body moving along a straight line between points O and A is shown. During its motion between O and A, how many times does the body come to rest?
