Question #232761
A father pull his younger daughter on a sled at 40
1
Expert's answer
2021-09-03T08:25:24-0400

If a father pull his younger daughter on a sled at 40° above the horizontal applying 3N-force, at a constant speed, then the force of friction of the sled is


f=Fcos⁡α=3⋅cos⁡40°=2.3 N.f=F\cos\alpha=3·\cos40°=2.3\text{ N}.



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