engineering recuitment ISRO Scientist Mechanical Mock Test Engineering Mechanics Equilibrium and Friction Friction
An elephant is stopped by a rope wound twice around the rough trunk of a tree. If the elephant exerts a pull of 1000 kgf, the minimum force required to stop the elephant is_________. (Coefficient of friction between the rope and the tree is 0.3)
1
1000 kgf
2
300 kgf
3
700 kgf
4
23 kgf