A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is: A force exerts an impulse I on a particle changing its speed from u to 2u. The applied force and the initial velocity are oppositely directed along the same line. The work done by the force is: November 26, 2020 Category: Arihant Physics by D.C Pandey , Chapter 8 - COM, Momentum and Collision , Volume 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related