Answer to Question #300486 in Physics for Ica

Question

A worker pushes a wood crate of mass 23.4 kg across a concrete floor with a constant horizontal force of magnitude 80N. In a straight-line displacement of magnitude d= 1.5 m, the speed of the crate decreases from 0.90 m/s to 0.50 m/s.

Find the following:

a. Work done by the worker’s force.

b. Change in the kinetic energy of the crate.

c. The Increase in the thermal energy of the crate and the floor.