Question

Figure shows a man of mass 55 kg standing stationary with respect to a horizontal conveyor belt that is accelerating with `1m s^(-2)`. The net force acting on the man is
A. 35N
B. 45N
C. 55N
D. 65N

Answer 1

Correct Answer - C
Here, mass of the man, M=55kg
As the man is standing stationary w.r.t. the belt, acceleration of man=acceleration of belt.
`therefore "Acceleration of man" a=1ms^(-2) `
`therefore "Net force on the man"=F=Ma=(55kg)(1ms^(-2))=55N`