Solve Physics HW: Kinetic Friction Coefficient

Thread starter jeffmazz
Start date Sep 25, 2011
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Friction Kinetic Kinetic friction

AI Thread Summary

To find the coefficient of kinetic friction for a 20kg sled being pulled with an 80N force at a 30-degree angle, the net force must be analyzed. The force of friction equals the pulling force's horizontal component, which can be calculated using trigonometry. The normal force is affected by both the weight of the sled and the vertical component of the pulling force. By applying the equation of motion and the definition of friction, the coefficient of kinetic friction can be derived. This problem emphasizes the importance of understanding forces and their components in physics.

Sep 25, 2011

jeffmazz

i feel really dumb but i have this physics homework question i can't get.

a 20kg sled is being pulled across a horizontal surface at constant velocity. the pulling force has a magnitude of 80N at a 30 degree angle above the horizontal. find the coefficient of kinetic friction.

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Sep 25, 2011

btbam91

https://www.physicsforums.com/forumdisplay.php?f=153

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