Question

A body is moving along a circular path of radius R what will be the displacement of the body when it revolves 3/4 of circular path

Answer 1

Displacement:It is actually the straight line distance from final to initial position..

travelling 3/4 means it covers 3 parts of the circle which is divided into 4 eqaul parts....

Displacement=IF

(IF)^2=R^2+R^2

(IF)^2=2R^2

IF=√2R

so , displacement will be √2R