Practice question
Question
A ball is thrown upwards at 28m/s from the ground. At the same instant, another ball is dropped from 80m above. Where do they meet relative to the ground? (Take g\=10m/s2)
Explanation
For free fall, s=½gt² and v²=2gh per NCERT. With g=10 m/s², given height or velocity yields time or distance via these equations. Substituting values gives result matching 28 t. This confirms option A as correct by uniformly accelerated motion equations.