Question

A railroad worker was a person who worked on setting and moving railroad tracks. In securing the rail to the tie, spikes were driven into the tie with a sledge hammer. Assume that the sledge hammer has a mass M and the spike has mass m. If the spike is driven into the tie at a distance d and the sledge hammer operates from a height y. What is the resistance f of the tie in terms of the preceding variables, assuming it to be constant and the sledge hammer and spike to stay together on impact.

Answer 1