Question

A ball is projected with velocity V. at an angle of elevation.
30°. Mark the correct statement
(a) Kinetic energy will be zero at the highest point of
trajectory
(b) Vertical component of momentum will be conserved
(c) Horizontal component of momentum will be conserve
(d) Gravitational potential energy will be minimum at
highest point of the trajectory​

Answer 1

Answer:

Option c is correct

Explanation:

C.)As the ball is projected upwards the vertical component gets changed but the horizontal component (v=vcos teta) moves parallel to the to base(ground) .

While in the other options if we check the kinetic energy will be 1/2mv2 cos2teta at the highest point and the vertical component gets alternatively changed acc to the position and the gravitational potential energy is maximum at the highest peak