Two identical steel balls are released simultaneously from the same height

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

Two identical steel balls are released simultaneously from the same height. Ball P is simply dropped from rest, while Ball Q rolls off the edge with a horizontal speed of 2.0 m s−12.0\,\text{m}\,\text{s}^{-1}. Air resistance is negligible. Which statement best describes their motion? (a) Ball P hits the ground first because its lack of horizontal motion lets it fall faster. (b) Both balls hit the ground at the same time because their vertical motions are identical. (c) Ball Q hits the ground first because its greater initial speed increases its downward motion. (d) Both balls hit the ground at the same time, but Ball P travels the greater horizontal distance.

Related theory

Browse the problem library