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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 1 > Chapter 4 - Motion in Plane > A projectile is fired at an angle 30^∘ of to the horizontal such that the vertical component of its initial velocity is 80 m/s. Its time of flight is T. Its velocity at t= T/4 has a magnitude of nearly:

A projectile is fired at an angle 30^∘ of to the horizontal such that the vertical component of its initial velocity is 80 m/s. Its time of flight is T. Its velocity at t= T/4 has a magnitude of nearly:

A very broad elevator is going up vertically with a constant acceleration of 2m/s^2. At the instant when its velocity is 4m/s a ball is projected from the floor of the lift with a speed of 4m/s relative to the floor at an elevation of 30^o. The time taken by the ball to return the floor is (g = 10m/s^2 )