PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power
Problem
In a classroom experiment, a student lifts a school bag of mass 4kg from the floor to a table 2m high. In the same room, another student compresses a spring of spring constant 200Nm−1 by 0.10m.
(i) Identify the type of potential energy stored in each activity.
(ii) Calculate the magnitude of potential energy stored in the lifted bag. Take g=9.8ms−2.
(iii) Calculate the magnitude of potential energy stored in the compressed spring.
(iv) Which activity stores more potential energy and by how much? Show your working.