A Sled Is on a Horizontal Surface and a Rope

question 91

Multiple Choice

A sled is on a horizontal surface and a rope with tension T is pulling on it at an angle θ above the horizontal.The sled had mass M and does not move due to the frictional force.In this case the coefficient of friction is μ​_s.In terms of the variables given and g,what is the magnitude of the frictional force in this case?

• A)μ​_sMg
• B)Tcosθ
• C)Tsinθ
• D)μ​_sMgcosθ

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