A vehicle starts moving along a straight line path from rest. In first t seconds it moves with an acceleration of \(2 \ m/s^2\) and then in next 10 seconds it moves with an acceleration of \(5 \ m/s^2\). The total distance travelled by the vehicle is 550 m. The value of time t is

Starting from rest a vehicle accelerates at the rate of \(2 \ m/s^2\) towards east for 10 s. It then stops suddenly. It then accelerates again at a rate of \(4\sqrt{2} \ m/s^2\) for next 10 s towards south and then again comes to rest. The net displacement of the vehicle from the starting point is

An object is covering distance in direct proportion to the square of time elapsed. What conclusion can be drawn about the motion of the object?

If the distance time graph of the motion of an object is a straight line but not parallel to the time axis, then it may be concluded that the object is moving with a:

Which of the following changes when a body performs uniform circular motion?

Vehicles have treaded tires so that it_______.