railway RRB JE (CBT I + CBT II) Mock Test 2024 Engineering Mechanics Equilibrium and Friction Friction
A body of mass 16 kg is accelerating at a rate of 5 m/sec2 when a force F is applied to it. If the coefficient of friction of the surface is 0.25, what is the external force F acting upon the body?
1
180 N
2
100 N
3
120 N
4
80 N