AAI ATC Junior Executive 25 Mar 2021 Shift 2 Paper

Question : 77 of 120

Marks: +1, -0

A cage in a mine-shaft descends with 2 ft/s² units of acceleration. After it has been in motion for 10 seconds a particle is dropped on it from the top of the shaft with 32 ft/s². What time elapses before the particle hits the cage?