A wheel on a freight car carries a load W. If the axle of the car has
Question:
A wheel on a freight car carries a load W. If the axle of the car has a diameter D, determine the horizontal force P that must be applied to the axle to rotate the wheel. The coefficient of kinetic friction is μk.
Units Used:
kip = 1000 lb
Given:
W = 20 kip
D = 2 in
μ k = 0.05
r = 16 in
W P
Step by Step Answer:
W 6 R Fx 0 0 Thus PR sin 0 ...View the full answer
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
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