Sample Problem Kinetic Energy And Work
a horizontal friction less counter with speed . It then runs into and compresses a spring of sp ring constant.
SOLUTION: There are three Key Ideas here:
1. The work done on the canister by the spring force is related to the requested distance with replacing x.
2. The work W, is also related to the kinetic energy of the canister.
3. The canister’s kinetic energy has an initial value and value of zero when the canister is momentarily at rest.