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Mathematical Formulation of second law

What is the f...

Question

What is the force on a body of mass $m$ when it is moving with a constant velocity ?

A

m g

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B

0

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C

\frac{m}{g}

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D

g

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Solution

The correct option is B $0$
When a body moves with constant velocity, its acceleration is zero ( $a = 0$ ).
So, force required, $F = m \times a = m \times 0 = 0$

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