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physics

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the inclined plane is 30* from the ground

a) What is the mechanical advantage of the inclined plane?
b) A weight of 100N is to be lifted using the inclined plane. What is the minimum applied force for this job?
c) Suppose that an applied force of 200N is needed to move a block of unknown mass along the inclined plane. What is the weight and mass of the block? Assume that the incline is frictionless.

  • physics -

    The MA is horizontal distance/height gained, or MA= cotangent 30 deg

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