JEE Main202127 Aug 2021Morning ShiftPhysicsWork, Power and EnergyActual
Two persons A and B perform same amount of work in moving a body through a certain distance d with application of forces acting at angles 45 ° and 60 ° with the direction of displacement respectively. The ratio of force applied by person A to the force applied by person B is 1 x . The value of x is _________.
Correct answer
0
Step-by-step solution
Given, W 1 = W 2 and, we know that work done is a scalar quantity it means, F 1 S cos 45 ° = F 2 S cos 60 ° ⇒ F 1 F 2 = 1 2 = 1 x ⇒ x = 2 .