What is the work done by the earth in moving | vedclass

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

Question

(C) The work done $(W)$ is defined by the formula $W = F \cdot s \cdot \cos(	heta)$,where $F$ is the force,$s$ is the displacement,and $	heta$ is th

Vedclass · Accepted Answer

Zero

Vedclass · Answer

(C) The work done $(W)$ is defined by the formula $W = F \cdot s \cdot \cos(	heta)$,where $F$ is the force,$s$ is the displacement,and $	heta$ is the angle between the force and the displacement.In the case of the earth moving around the sun,the gravitational force acts towards the center of the sun (centripetal force),while the displacement of the earth is along the tangent to its circular orbit.Since the force and the displacement are perpendicular to each other,the angle $	heta = 90^\circ$.Therefore,$W = F \cdot s \cdot \cos(90^\circ) = F \cdot s \cdot 0 = 0$.Thus,the work done by the earth in moving around the sun is zero.

What is the work done by the earth in moving around the sun?

Similar Questions

Is it possible that a body be in accelerated motion under a force acting on the body,yet no work is being done by the force? Explain your answer giving a suitable example.

$A$ boy of mass $40 \, kg$ runs up a flight of $50$ steps,each $10 \, cm$ high,in $5 \, s$. Find: $(i)$ the work done by the boy,and $(ii)$ the power developed. $(g = 9.8 \, m s^{-2})$

$A$ spring which has been kept compressed by tying it is allowed to be dissolved in an acid. What happens to the potential energy of the spring?

The potential energy of a person is minimum when:

Vedclass Test Series

Exam Paper Generator

Online Exam Module