Forces and Free-Body Diagrams

AP Physics 1· difficulty 2/5

A block on a frictionless θ\theta-incline experiences which net force component <strong>along</strong> the incline?

  • A

    mgtanθm g \tan\theta

  • B

    mgm g

  • C

    mgcosθm g \cos\theta

  • D

    mgsinθm g \sin\theta

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Explanation

Gravity's component down the slope is mgsinθm g \sin\theta; perpendicular component mgcosθm g \cos\theta is balanced by the normal force.

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