T
thesorceresshermione
Guest
It's front wheel (m=1.3kg) is rotating at an angular velocity of 13.1 rad/s. The front brake is then applied for 3.0seconds, and the wheel slows down to 3.7 rad/s. Assume that all the mass o the wheel is concentrated on the rim, the radius of which is .33m. The coefficient of kinetic friction between each brake pad (there are two, one on each side of the wheel)and the rim is .85. What is the magnitude of the normal force that EACH brake pad applies to the rim?
I know the answer is .78N, but I need to find out how to get that answer.
I know the answer is .78N, but I need to find out how to get that answer.