A ball is projected from the top of a tower at an angle 60° with the vertical. What happens to the vertical component of its velocity?

Question

A ball is projected from the top of a tower at an angle 60° with the vertical. What happens to the vertical component of its velocity? (A) Increases continuously (B) Decreases continuously (C) Remains unchanged (D) First decreases and then increases

Tardigrade Admin · Accepted Answer

As acceleration due to gravity acts against the motion up to the highest point, hence vertical component of the velocity first decreases. But during downward motion, acceleration due to gravity acts in the direction of motion; hence vertical component of velocity then starts increasing.

Q. A ball is projected from the top of a tower at an angle 60° with the vertical. What happens to the vertical component of its velocity?

Increases continuously

Decreases continuously

Remains unchanged

First decreases and then increases

As acceleration due to gravity acts against the motion up to the highest point, hence vertical component of the velocity first decreases. But during downward motion, acceleration due to gravity acts in the direction of motion; hence vertical component of velocity then starts increasing.