a stone is falling from a moutain.the velocity of the stone is given by V=9.8t.draw it's graph and find the velocity of the stone`4`seconds after start
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v=9.8t
at t= 4
v=9.8(4)
=39.2 m/s
at t= 4
v=9.8(4)
=39.2 m/s
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