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1st Equation of Motion

A person of w...

Question

A person of weight 100N stands on a weighing machine in elevator . Suddenly the cable breaks and man falls freely . The weight of man showed by machine is ??

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Solution

Dear Student

When the lift crashes down freely , a = g

According to Newton’s second law of motion, the equation can be written as:
Apparent weight, R

R + mg = ma

R = m (g – g) = 0.
Thus, under a free fall condition the person will be in a state of weightlessness.

Regards

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