What is the direction of torque when we open or close a door? Explain in detail. 1. Torque 2. Equilibrium What do you understand by a clockwise and anticlockwise moment of force? When is it taken positive? Why do ceiling fans rotate anti-clockwise?
In Hugyen's principle of wave theory why the waves are move in forward direction not in backward direction means they move forward as a new source why not in backward direction? Why does an electric fan continue to rotate for some time after the current is switched off...