Q-1 A nut can be opened by lever of length 20 cm. If the minimum force required is 4 N, calculate the moment of force to turn the nut.
Q-2The moment of force of 10 N about point P is 50 Nm. Calculate the distance of point application of force about that point.
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Q-1
Newton's insight on the inverse-square property of gravitational force was from intuition about the motion of the earth and the moon. The mathematical formula for gravitational force is F=GMmr2 F = G Mm r 2 where G is the gravitational constant.
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