railway RRB JE (CBT I + CBT II) Mock Test 2024 Engineering Mechanics Kinematics and Kinetics Force Mass and Acceleration
In an experimental test conducted on hoisting machine, it was found that an effort of 40 kN was applied to lift a load of 180 kN. An effort of 32 kN was required to lift a load of 140 kN. As per law of machine, effort required to lift 15kN load is
1
15 kN
2
10 kN
3
7 kN
4
2 kN