A mule is harnessed to a sled having a mass of 261 kg, including supplies. The mule must exert a force exceeding 1270 N at an angle of 38.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point particle. (a) Calculate the normal force (in N) on the sled when the magnitude of the applied force is 1270 N. (Enter the magnitude.) (b) Find the coefficient of static friction between the sled and the ground beneath it. (c) Find the static friction force (in N) when the mule is exerting a force of 6.35 ✕ 102 N on the sled at the same angle. (Enter the magnitude.)

A mule is harnessed to a sled having a mass of 261 kg, including supplies. The mule must exert a force exceeding 1270 N at an angle of 38.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point particle. (a) Calculate the normal force (in N) on the sled when the magnitude of the applied force is 1270 N. (Enter the magnitude.) (b) Find the coefficient of static friction between the sled and the ground beneath it. (c) Find the static friction force (in N) when the mule is exerting a force of 6.35 ✕ 102 N on the sled at the same angle. (Enter the magnitude.)

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Description: A mule is harnessed to a sled having a mass of 261 kg, including supplies. The mule must exert a force exceeding 1270 N at an angle of 38.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point particle.(a)Calculate the n

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 61P

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!

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Question

(a)

Calculate the normal force (in N) on the sled when the magnitude of the applied force is 1270 N. (Enter the magnitude.)

(b)

Find the coefficient of static friction between the sled and the ground beneath it.

(c)

Find the static friction force (in N) when the mule is exerting a force of 6.35 ✕ 10² N on the sled at the same angle. (Enter the magnitude.)

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