A bobsleigh (mass = 430 kg) is pushed across a horizontal (ice) surface with a horizontal force of 1927 N. If the coefficient of static friction (µs) and coefficient of dynamic (kinetic) friction (µk) between the bobsleigh and the ice are 0.071 and 0.068 respectively, what is the maximal friction force between the bobsleigh and the ice?

Question

Quizplus · Accepted Answer

the maximal friction force = µs x N (normal reaction force). The coefficient of static friction (µs) is provided. Because the bobsleigh is on a horizontal surface, the normal reaction force will be equal in magnitude to its weight (i.e. mass x acceleration due to gravity).

A Bobsleigh (Mass = 430 Kg) Is Pushed Across a Horizontal