1–12 A

1–12 A 5-kg rock is thrown upward with a force of 150 N at a location where the local gravitationalacceleration is 9.79 m/s2. Determine the acceleration of therock, in m/s2.
ANS
1-12  [Also solved by EES on enclosed CD]A rock isthrown upward with a specified force. The
acceleration of the rock is to be determined.
Analysis The weight of the rock is