Question

A 22 g particle is moving to the left at 21 m/s . How much net work must be done on the particle to cause it to move to the right at 46 m/s

Answer 1

18.425 Joules

Step-by-step explanation:

To figure this out we can simply use the W=Change in Kinetic Energy,

W = 1/2*.022*46^2-1/2*.022*21^2 (Note we can ignore the direction of the particles as we need to take the square of the velocity)

W=18.425 (By simplifying the expression)