
Sarah B.
asked 10/13/20Physics Inclined Plane Question w/ Friction
A block with mass m1 is placed on an inclined plane with slope angle α and is connected to a second hanging block that has mass m2 by a cord passing over a small, frictionless pulley. The coefficient of static friction is μs and the coefficient of kinetic friction is μk. a)Find the mass m2 for which block m1 moves up the plane at constant speed once it has been set in motion. b)Find the mass m2 for which block m1 moves down the plane at constant speed once it has been set in motion. c)Find the smallest value of m2 when the blocks will remain at rest if they are released from rest. Express all your answers in terms of m1, m2, α, μk, and μs.
Please solve by first listing out all the forces in terms of their x and y components for BOTH blocks. Then find Fnet separately for both blocks and then use a=Fnet/m to solve part a,b, and c. This is how I best understand it.
Show all work and steps!
Thank you!
1 Expert Answer
Yosef T. answered 10/13/20
RPI Ph.D. Math/Physics Tutor with a passion for teaching
My apologies for not being able to fit the entire answer into one video. This video addressed how to find the magnitude and direction of the normal force, but I ran out of time after that.
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Yosef T.
10/13/20