A ball is projected vertically upward from the edge of a cliff 45 m above a river…
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A ball is projected vertically upward from the edge of a cliff 45 m above a river with an initial speed of 12 m s⁻¹.
(i) Find the time taken for the ball to reach the river surface.
(ii) What is its speed just before impact with the water?