A particle projected at some angle with velocity 50 m/s crosses a 20 m high wall after 4 s from the time of projection. The angle of porjection of the particle is

A stone is projected from the ground with velocity 25m//s . Two seconds later, it just clears a wall 5 m high. The angle of projection of the stone is (g = 10m //sec^(2))

A particle is projected from ground with velocity 40sqrt(2)m//s at 45^(@) . At time t=2s

A particle is projected from ground with velocity 40sqrt(2)m//s at 45^(@) . At time t=2s

A body projected with a velocity 25m/s just clears a wall 5m high after 2 seconds. Find the angle of projection and maximum height reached by the body.

A body projected from a point O at an angle theta , just crosses a wall y m high at a distance. x m from the point of projection and strikes the ground at Q beyond the wall as shown, then find height of the wall

A particle is projected at an angle 60^@ with horizontal with a speed v = 20 m//s . Taking g = 10m//s^2 . Find the time after which the speed of the particle remains half of its initial speed.

A particle is projected at an angle 60^@ with horizontal with a speed v = 20 m//s . Taking g = 10m//s^2 . Find the time after which the speed of the particle remains half of its initial speed.

A particle is projected from the surface of the earth with a speed of 20 m* s^(-1) at an angle 30^@ with the horizontal . The time of flight of that particle is