A car falls off a ledge and drops to ground in 0.5s. Let `g = 10 ms^-2` How high is the ledge from the ground?

A car falls off a ledge and drops to ground in 0.5s. Let g = 10 ms^-2 What is its speed on striking the ground?

A ball dropped from a height 'h' reaches the ground in time 'T'. What is its height from the ground at time T/2 ?

Two small spheres each of mass 10 mg are suspended from a poimt by threads 0.5 m long. They are equally charged and repel each other to a distance of 0.28 m. If g = 10 ms^-2 , what is the charge on each ?

Two stones are thrown up simultaneously from the edge of a cliff 200 m high with initial speeds of 15 m s^-1 and 30 m s^-1 . Verify that the graph shown in Fig. 3.27 correctly represents the time variation of the relative position of the second stone with respect to the first. Neglect air resistance and assume that the stones do not rebound after hitting the ground. Take g = 10 m s^-2 . Give the equations for the linear and curved parts of the plot.

During an experiment, a signal from a spaceship reached the ground station in five minutes. What was the distance of the spaceship from the ground station ? The signal travels at a speed of light that is 3 xx 10^8 ms^-1 .

From a rifle of mass 5000 g a bullet of 20 g is fired with a velocity of 500ms^(-1) with respect to the ground. Find the velocity of recoil of the rifle.

A raindrop of mass 1.00 g falling form a height of 1 km hits the ground with a speed of 50 ms^-1 . Calculate. the loss of P.E. of the drop.

In a shotput event an athlete throws the shotput of mass 10 kg with an initial speed fo 1 ms^-1 at 45^@ from a height 1.5 m above ground. Assuming air resistance to be negligible and acceleration due to gravity to be 10 ms^-2 , the kinetic energy of the shotput when it jst reaches the ground wil be

A stone thrown horizontally with velocity u, falls on the ground after 0.5 second at a distance of 5m from where it was thrown.The velocity of the stone 0.5s later is 3u/2 What was the initial velocity?