AP EAMCET202017 Sep 2020Evening ShiftPhysicsWork, Power and EnergyActual
When a body moves in a circular path, no work is done by the force, since
Options
- Athere is no net force
- Bthere is no displacement
- Cforce is always away from the centre
- Dforce and displacement are perpendicular to each other
Correct answer
D. force and displacement are perpendicular to each other
Step-by-step solution
When a body moves in a circular path, then centripetal force is always directed towards centre of circular path. Hence, centripetal force and displacement (directed tangentially) are perpendicular to each other. ( ) Work done (W=F s 90^ =0 [ 90^ =0 ] )