+687
you need to determine if the object has KE or GPE or both. Then find their values.
A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall.
Circle one: KE / GPE / both
Show your work for finding the values of each type of energy the object has:
Would the answer be KE since the ball is moving?
+36916 The ball has KE since it is MOVING.
The ball ALSO has GPE since it is 40 m up in the air (see previous posting)
K.E. = 1/2 mv^2 = 1/2 2 kg (5 m/s)^2 = 25 kg-m^2/sec^2 = 25 j
