an object weighing 15 newtons is lifted from the ground to a height of 0.22 meter. What is the approximate increase in the object's gravitational potential energy?
physics - drwls, Wednesday, January 23, 2013 at 1:02pm
Multiply the two numbers. That will be the answer, in Joules
physics - Anonymous, Wednesday, January 23, 2013 at 2:05pm
but what about gravity? Why not 15x9.81x.22?
physics - Devron, Wednesday, January 23, 2013 at 3:38pm
15 N is mass *acceleration. In this case, acceleration= gravity.