A stone is thrown from top of a 60m high building such that the vertical component of initial velocity is 20m/s downwards.The initial velocity vector makes angle of `45^(@)` with vertical.The distance at which the stone lands from the base of building is?

A body is thrown horizontally with an initial velocity of 10m//s from a cliff. At what time (in sec.) will the velocity vector make an angle of 45^(@) with horizontal?

A stone is thrown from the top of a building with an initial velocity of 20 m/s downward. The top of the building is 60 m above the ground. How much time elapses between the instant of release and the instant of impact with the ground ?

From the top of a cliff of height 150 m, a stone is thrown up with a velocity of 19.6 m//s , at an angle of 60 ^(@) with the vertical . Calculate the distance of the point where it strickes on the ground from the foot of the cliff .

A stone is projectef from level ground such that its horizontal and vertical components of initial velocity are u_x=10(m)/(s) and u_y=20(m)/(s) respectively. Then the angle between velocity vector of stone one second before and one second after it attains maximum height is:

A stone is projected from level ground at t=0 sec such that its horizontal and vertical components of initial velocity are 10(m)/(s) and 20(m)/(s) respectively. Then the instant of time at which tangential and normal components of acceleration of stone are same is: (neglect air resistance) g=10(m)/(s^2) .

A bird moves with velocity 20m s^(-1) in a direction making an angle of 60^(@) with vertical upward .Represent the velocity vector in a rectangular form.

From the top of a tower 20m high, a ball is thrown horizontally. If the line joining the point of projection to the point where it hits the ground makes an angle of 45^(@) with the horizontal, then the initial velocity of the ball is:

A body is projected horizontally from the top of a tower with a velocity of 20m/s .After what time the vertical component of velocity is four times the horizontal component of velocity (g=10m/s^(2))

Two balls A and B of same masses are thrown from the top of the building A . Thrown upward with velocity V and B , thrown downward with velocity V , then