The displacement-time graph of a moving object is shown in figure. Which of the velocity-time graphs shown in figure could represent the motion of the same body?
A student is standing at a distance of from the bus. As soon as the bus begins its motion with an acceleration of , the student starts running towards the bus with a uniform velocity . Assuming the motion to be along a straight road, the minimum value of , so that the student is able to catch the bus is
An elevator car, whose floor to ceiling distance is equal to 2.7 starts ascending with constant acceleration of 2 after the start, a bolt begins falling from the ceiling of the car. The free fall time of the bolt is
A body thrown vertically upwards with an initial velocity reaches maximum height in 6 seconds. The ratio of the distances travelled by the body in the first second and the seventh second is
A police car is travelling in a straight line with a constant speed A truck travelling in the same direction with constant velocity 3v/2 passes, the police car at The police car starts acceleration 10 s after passing the truck, at a constant rate of while truck continues to move at constant speed. If he police car takes 10 s further to catch the truck, find the value of
The position of a particle (in metres) at a time seconds is given by the relation . Calculate the magnitude of velocity of the particle after 5 seconds