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28 August, 10:22

A 10-kg mass slides down a flat hill that makes an angle of 10° with the horizontal. If friction is negligible, what is the resultant force on the sled?

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  1. 28 August, 11:16
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    Resultant force = 17.02 N

    Explanation:

    As we assume the coefficient of friction is negligible, the normal force won't affect the resultant force.

    As a result of this, the sine of the angle times the force of gravity on the 10 kg mass is equal to the resultant force, which is, force due to gravity = m * a = 10 kg * 9.8 m/s² = 98 N

    98 sin (10) = ?

    Sin (10) = 0.1736

    98 x 0.1736 = 17.02 N.

    Therefore, the resultant force = 17.02 N
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