Asked by Christian
A box weighing 87 lb is being pulled with a rope that exerts a force of 60. lb at an angle of 15 degrees with the horizontal. if the coefficient of kinetic friction is .35, what is the kinetic friction?
Answers
Answered by
Scott
the rope being at an angle reduces the effective weight for the friction calculation
{87 - [60 sin(15ยบ)]} * .35
{87 - [60 sin(15ยบ)]} * .35
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