An elevator ascends from the ground with uniform speed. a time tį later, a boy drops a marble through a hole in the floor. a time t2 after that (i. e. ti +t2 after start) the marble hits the ground. find an expression for the height of the elevator at time ti. (local gravity is g.) what checks can you make?
Answers: 3
Since the marble hits the ground at T2, Ym=0m
Solving for Ve:
Replcaing this value into Ye:
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