A ball is released from rest from top of the tower. Ratio of workdone by force of gravity in first, second and third second of motion of ball is
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force of gravity acting on the ball is constant (i.e. mg).
X1,X2,X3 are displacement in 1st, 2nd and 3rd sec resp.
W1 : W2 : W3 = (mg X1) : ( mg X2) : ( mg X3)
= X1 : X2 : X3
According to Galileo's Odd number rule:
X1 : X2 : X3 : X4 : ... = 1 : 3 : 5 : 7: ...
so,
W1 : W2 : W3 = 1 : 3 : 5
ans
X1,X2,X3 are displacement in 1st, 2nd and 3rd sec resp.
W1 : W2 : W3 = (mg X1) : ( mg X2) : ( mg X3)
= X1 : X2 : X3
According to Galileo's Odd number rule:
X1 : X2 : X3 : X4 : ... = 1 : 3 : 5 : 7: ...
so,
W1 : W2 : W3 = 1 : 3 : 5
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