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A 155 N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

• physics -

155 N * sin 30 = ___

• physics -

An inclined plane is used to raise a 100 kg box to a height of 5 m. How long must
the inclined plane be if a force of 250 N is used to push the box up the inclined
plane?

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