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    nancy 44 justin's Avatar
    nancy 44 justin Posts: 1, Reputation: 1
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    #1

    Jul 22, 2015, 08:37 AM
    Motion under gravity
    A stone thrown vertically upward with an initial velocity of 29.4 m/s from the top of a tower 34.3m high find
    [a]the time taken to reach the maximum height
    [b]total time that elapsed before it reaches the ground
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Jul 22, 2015, 09:35 AM
    So let's see your work, we don't do it for you. How fast does the stone fall?
    kreysiz's Avatar
    kreysiz Posts: 37, Reputation: 2
    Junior Member
    		  
    #3

    Jul 22, 2015, 11:28 AM
    There are 3 basic relations between velocity, displacement, acceleration & time.
    Just go through those equations and see which one fits with your question.
    If still you have a problem, show your approach on the question so that I can see and guide you.
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