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8 March, 00:09

A box with a mass of 100.0 kg slides down a ramp with a 50 degree angle. What is the weight of the box? N What is the value of the normal force? Round the answer to the nearest whole number. N What is the acceleration of the box? (Disregard friction and air resistance.) Round the answer to the nearest tenth.

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  1. 8 March, 03:26
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    Q = m · g = 100 kg · 9.81 m/s² = 981 N (the weight)

    N = m · g · cos 50° = 100 kg · 9.81 m/s² · 0.6428 = 612.9 N (the normal force)

    m · a = m · g · sin 50° / : m

    a = g · sin 50° = 9.81 m/s² · 0.766 = 7.5 m/s²
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