The weight acts vertically downwards.
The reaction force acts perpendicularly to the surface/slope.
The kinetic friction force due to skidding acts parallel to the surface in the direction against the motion.
Force due to a gravitational acceleration component acts parallel to the surface directed downslope.
Tension acts upslope.
In the figure below, the pulley has negligible mass and is frictionless. The coefficient of static friction, μs, between block A and the incline in 0.430. Block A has a mass of 1.00 kg, block B has a mass of 2.00 kg and the angle of the incline is 30.0°.
a) Draw a force diagram for block A.
b) Draw a force diagram for block B.
c) Is this situation in equilibrium or are the blocks moving? 1.0 kg 2.0 kg B 30 If the blocks are moving, which way are they moving?
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Systems of Objects on Inclined Planes with Friction concept. You can view video lessons to learn Systems of Objects on Inclined Planes with Friction. Or if you need more Systems of Objects on Inclined Planes with Friction practice, you can also practice Systems of Objects on Inclined Planes with Friction practice problems.
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