A door can be pushed either at the centre or at the edge farthest from the hinges
PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A door can be pushed either at the centre or at the edge farthest from the hinges. If the same horizontal force is applied at the same angle in both situations, what happens to the magnitude of the torque when the point of application is shifted from the centre (distance 0.4m) to the edge (distance 0.8m)?
(a) Torque becomes four times
(b) Torque doubles
(c) Torque halves
(d) Torque remains unchanged