Motion in a Str...

Two spheres of same size, one of mass 2 kg and another of mass 4 kg are dropped simultaneously from the top of Qutub Minar (height = 72 m). When they are 1 mabove the ground, the two spheres have the same

Water drops fall at regular intervals from a top which is 5 m above the ground. The third drop is leaving the tap at the instant the first drop touches the ground. How far above the ground is the second drop at that instant

A body dropped from a height h with an initial speed zero, strikes the ground with a velocity 3 km/hr. Another body of same mass is dropped from the same height h with an initial speed –u\' = 4 km/hr. Find the final velocity of second body with which it strikes theground

With what velocity a ball be projected vertically so that the distance by it in 5th second is twice the distance it covers in its 6th second (g = 10m/s²)

A ball is dropped downwards. After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds.

A stone is thrown with an initial speed of 4.9 m/s from a bridge in vertically upward direction. If falls down in water after 2 sec. The height of the bridge is

The time taken by a block of wood (initially at rest) to side down a smooth inclined plane 9.8 m long (angle ofinclination is 30°) is

Velocity of a body on reaching the point from which it was projected upwards, is

A body projected vertically upwards with a velocity u returns to the starting point in 4 seconds. If g = 10m/sec², the value of u is

Time taken by an object falling from rest to cover the height of h₁ and h₂ is respectivelyt₁ and t₂ then the ratio of t₁ to t₂ is