Saurav
Last Activity: 6 Years ago
Ans should be D
As we r elevating to same height same energy is spent = mgh
N = mgcostheta
Component of N against gravity is N costheta sintheta
As the angles are 60 and 30 degree , work done by N is same in both
Now work done by forces should be same
So the component of force against the gravity should be equal therefore f sin theta should be equal as sin theta is smaller in scenario A force f should be greater