A ball is thrown with initial energy 100J at an angle `theta` to the horizontal . If its energy at the top becomes 30 J then angle of projection-

A ball is thrown up with a certain velocity at angle theta to the horizontal. The kinetic energy varies with height h of the particle as:

A ball is thrown up with a certain velocity at angle theta to the horizontal. The kinetic energy varies with height h of the particle as:

A javelin is thrown with an initial velocity v_0 at an angle theta with the horizontal. Find the angle of projection at which the maximum height attained by the javelin is equal to the horizontal range.

A ball is thrown up with a certain velocity at anangle theta to the horizontal. The kinetic energy KE of the ball varies with horizontal displacements as:

A ball is thrown up with a certain given velocity at angle theta to the horizontal. The kinetic energy, KE of the ball varies with horizontal displacement x as:

A javelin is thrown with an initial velocity v_0 at an angle theta with the horizontal. What is the horizontal and vertical velocities of the body I) at the point of projection II) at maximum height

A ball is thrown up with a certain velocity at an angle theta to the horizontal. The graph between kinetic energy and horizontal displacement is given by:

A ball is projected with initial velocity u at an angle theta to the horizontal. Then horizontal displacement covered by ball as it collides third time to the ground would be, if coefficient of restitution is e :

A shot is fired at an angle theta to the horizontal such that it strikes the hill while moving horizontally. Find the initial angle of projection theta .