A ball is dropped from a height of 5 metre. find the velocity of the ball just before it reaches the ground .do you require the value of mass to find out the velocity
Rk1776:
help plzz
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As we know the eqn of motion
V² - U² = 2aS
Since its dropped then the initial velocity must be zero ,
U=0
V²=2aS
a=acceleration due to gravity
V²=2gS
V²=2x9.8x5
V²=98
V=98^½
V=9.8m/s
V² - U² = 2aS
Since its dropped then the initial velocity must be zero ,
U=0
V²=2aS
a=acceleration due to gravity
V²=2gS
V²=2x9.8x5
V²=98
V=98^½
V=9.8m/s
thx
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