Motion Test - 4...

A steel ball is bouncing up and down on a steel plate with a period of oscillation 1 second. If $$g=10  { m }{ { s }^{-2 } }$$, then it bounces up to a height of

Two objects of mass ratio $$1 :4$$ are dropped from the same height. Then

A body is thrown vertically upwards with an initial velocity $$u$$. The expression for the maximum height attained by the body is

Two stones are thrown from the top of a tower, one straight down with an initial speed $$u$$ and the second straight up with the same speed $$u$$. When the two stones hit the ground, they will have speeds in the ratio

Statement 1:Two balls of different masses are thrown vertically upward with same speed.They will pass through their point of projection in downward direction with the same speed.
Statement 2:The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball

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

Two balls of masses in ratio $$1 : 2$$ are dropped from the same height. Find the ratio between their velocities when they strike the ground:

If a particle moves in a circle with constant speed, its velocity :

A rubber ball is dropped from a height of $$5  m$$ on a planet where the acceleration due to gravity is same as that on the surface of the earth. On bouncing, it rises to a height of $$1.8  m$$. the ball loses its velocity by a factor of

A truck of mass $$5\times 10^3\ kg$$ starting from rest travels a distance of $$0.5\ km$$ in $$10\ s$$ when a force is applied on it. Calculate the acceleration acquired by the truck