Figure shows a man of mass $55 k g$ standing stationary with respect to a horizontal conveyor belt that is accelerating with $1 m s^{- 2}$ . The net force acting on the man is:

35 N

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45 N

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55 N

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65 N

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Solution

The correct option is B $55 N$
Given,

Man on conveyor belt move with it,

Hence, Acceleration of belt and man is equal

Mass of the man, $M = 55 k g$
Acceleration of man, $a = 1 m s^{- 2}$
Net force on the man, $F = M a = 55 \times 1 = 55 N$
Force on man is $55 N$

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