Two stones are thrown simultaneously from the top of a cliff high
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Two stones are thrown simultaneously from the top of a cliff 80m high.
Stone A is projected horizontally with speed 12m s−1.
Stone B is thrown with speed 15m s−1 at an angle 37∘ below the horizontal.
Assume g=9.8m s−2 and neglect air resistance.
(i) Calculate the time taken by each stone to reach the ground.
(ii) State which stone strikes the ground first and by how much time.
(iii) Determine the horizontal separation between the points where the two stones land.