In case of an object vertically projected, show that the speed of the object upon reaching the point of projection is equal to speed of projection .

Two balls of different masses are thrown vertically upwards with the same speed . They pass through the point of projection in their downward motion with the same speed ( Neglect air resistance ).

A particle is projected vertically upward with velocity u from a point A , when it returns to the point of projection .

A particle is projected vertically upwards in vacuum with a speed u .

The ratio of the speed of a projectile at the point of projection to the speed at the top of its trajectory is x. The angle of projection with the horizontal is

An object is projected horizontally from a top of the tower of height h. The line joining the point of projection and point of striking on the ground makes an angle 45^@ with ground, then with what velocity the object strikes the ground

If a body is projected with a speed lesser than escape velocity, then

A projectile shot at angles of 45^(@) above the horizontal strikes a building 30 m away at a point 15 m above the point of projection. Find : (a) the speed of projection . (b) the magnitude and direction of velocity of projectile when it strikes the building .

Show that tiem of ascent of a vertically projected body is equal to time of descent.

Two balls A and B are thrown with speeds u and u//2 , respectively. Both the balls cover the same horizontal distance before returning to the plane of projection. If the angle of projection of ball B is 15^@ with the horizontal, then the angle of projection of A is.

A ball is projected vertically up such that it passes thorugh a fixed point after a time t_(1) and t_(2) respectively. Find a. The height at which the point is located with respect to the point of projeciton b. The speed of projection of the ball. c. The velocity the ball at the time of passing through point P . d. (i) The maximum height reached by the balll relative to the point of projection A (ii) maximum height reached by the ball relative to point P under consideration. e. The average speed and average velocity of the ball during the motion from A to P for the time t_(1) and t_(2) respectively. .