Motion Test - 3...

An object is thrown vertically upward with a velocity of $$10\ ms^{-1}$$. It strikes the  ground after _______ seconds. (Take $$g  = 10\ ms^{-2}$$)

An object is released from a balloon rising up with a constant speed of $$2\ ms^{-1}$$. Its magnitude of velocity after $$1\ s$$ in $$\ ms^{-1}$$ is

When a body is projected vertically up from the ground its velocity is reduced to $$\frac{1}{4}$$th of its velocity at ground at height $$h$$. Then the maximum height reached by the body is

A body projected vertically up with a velocity of 10 m s$$^{-1}$$ reaches a height of 20 m. If it is projected with a velocity of 20 m s$$^{-1}$$, then the maximum height reached by the body is :

To reach the same height on the moon as on the earth, a body must be projected up with:

If an object is thrown vertically up with a velocity of $$19.6\ ms^{-1}$$, it strikes the ground after $$x$$ second, find $$x$$. 

The velocity of a body which starts from rest with an acceleration $$2\ ms^{-2}$$ and covering a distance of $$10\ m$$ in $$ms^{-1}$$ is:

A stone is dropped from a rising balloon at a height of 300 m above the ground and it reaches the ground in 10 s. The velocity of the balloon when it was dropped is :

A particle is thrown vertically upwards. Its velocity at one fourth of the maximum height is $$20 \ m s^{-1}$$. Then, the maximum height attained by it is

A ball is thrown vertically upwards. It has a speed of $$10  m  s^{-1}$$, when it has reached on half of its maximum height. How high does the ball rise? (Take g $$=$$ 10 m s$$^{-2}$$)