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Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Chapter 3 - Laws of Motion > To mop-clean a floor, a cleaning machine presses a circular mop of radius R vertically down with a total force F and rotates it with a constant angular speed about its axis. If the force F is distributed uniformly over the mop and the floor is μ, the torque, applied by the machine on the mop is (N-m) is

To mop-clean a floor, a cleaning machine presses a circular mop of radius R vertically down with a total force F and rotates it with a constant angular speed about its axis. If the force F is distributed uniformly over the mop and the floor is μ, the torque, applied by the machine on the mop is (N-m) is

A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point the magnitude of the force applied is (g=10ms^−2) the rope deviated at an angle of 45^∘ at the roof point. If the suspended mass is at equilibrium To mop-clean a floor