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Question

If a body is not accelerated by the application of forces that act along the same straight line, then

A
minimum two forces acts on it.
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B
unbalanced force acts on it.
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C
the resultant force is not zero.
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D
a single force acts on it.
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Solution

The correct option is A minimum two forces acts on it.
Given, acceleration of the body is zero.

According to Newton's second law of motion, if acceleration of the body is zero, then the forces acting on the body are balanced.

Therefore, there may be some forces acting on the body, but their net comes to be zero for balanced forces.

The minimum number of forces should be two for the balanced case.

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