Post by: nramada on Aug 1, 2020
A 3.0-kg block is dragged over a rough horizontal surface by a constant force of 16 N acting at an angle of 37° above the horizontal as shown. The speed of the block increases from 4.0 m/s to 6.0 m/s in a displacement of 5.0 m. What work was done by the friction force during this displacement?
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−34 J
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−64 J
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−30 J
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−94 J
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+64 J
Post by: taylorsonier on Aug 1, 2020
−34 J
Post by: kiko chan on Jan 31, 2023