When a body moves in a circular path,no work | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The work done by a force is given by the formula $W = \vec{F} \cdot \vec{s} = FS \cos 	heta$,where $	heta$ is the angle between the force vector

Vedclass · Accepted Answer

Force and displacement are perpendicular to each other

Vedclass · Answer

(C) The work done by a force is given by the formula $W = \vec{F} \cdot \vec{s} = FS \cos 	heta$,where $	heta$ is the angle between the force vector and the displacement vector.In uniform circular motion,the centripetal force acts towards the center of the circle,while the displacement (which is along the tangent to the path) is perpendicular to the radius.Therefore,the angle between the force and the displacement is $	heta = 90^\circ$.Since $\cos 90^\circ = 0$,the work done $W = FS \cos 90^\circ = 0$.

When a body moves in a circular path,no work is done by the force since,

Similar Questions

Which of the following is arranged in decreasing order of size?

$A$ thin rectangular magnet suspended freely has a period of oscillation equal to $T.$ Now it is broken into two equal halves (each having half of the original length) and one piece is made to oscillate freely in the same field. If its period of oscillation is $T',$ the ratio $T'/T$ is :-

The monomers of $Buna-S$ rubber are

The number of $5$-digit numbers that are not divisible by $5$ and consist of different odd digits is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module