Show that the work done by a constant net force in changing the speed of a body of…

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Show that the work done by a constant net force in changing the speed of a body of mass

m

from

u

v

in a straight line is

\tfrac12 m\left(v^{2}-u^{2}\right)