Start Free Mock LoginAlready registered? Login here

Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.Work kinetic energy theoremEasy2 minQB

PhysicsEasysingle choice

A particle of mass $m$ moves on a straight line with its velocity increasing with distance according to the equation $v = α x$ , where $α$ is a constant. The total work done by all the forces applied on the particle during its displacement from $x = 0$ to $x = d$ , will be :

Options:

Answer:

Solution:

$v = α x at x = 0 : v = 0 & at x = d; v = α d W.D = K_{f} - K_{i} W.D = \frac{1}{2} m (α d)^{2} - \frac{1}{2} m (0)^{2} \Rightarrow W.D = \frac{m α ^{2} d}{2}$

Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Work kinetic energy theorem

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...