Physics

how high does a stone rise if it is initially thrown at a rate of 15m/sec

asked by kaleab
  1. how high should a 2kg mass be lifted the ground at a speed of 15m/sec (g=10m/sec^2)

    posted by kaleab2
  2. m g h = (1/2) m v^2

    10 h = .5 * 15^2

    h = .05 * 225 = 11.25 meters

    posted by Damon
  3. first question:

    PE gained= KE lost
    mgh=1/2 m v^2
    h= 1/2 v^2/g

    second question: makes no sense to me.

    posted by bobpursley

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