A donkey is harnessed to a sled having a mass of 251 kg, including supplies. The donkey must exert a force exceeding 1230 N at an angle of 34.3° (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 1230 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 donkey is exerting a force of 6.15 ✕ 102 N on the sled at the same angle. (Enter the magnitude.)

A donkey is harnessed to a sled having a mass of 251 kg, including supplies. The donkey must exert a force exceeding 1230 N at an angle of 34.3° (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 1230 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 donkey is exerting a force of 6.15 ✕ 102 N on the sled at the same angle. (Enter the magnitude.)

Name: A donkey is harnessed to a sled having a mass of 251 kg, including sup
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Description: A donkey is harnessed to a sled having a mass of 251 kg, including supplies. The donkey must exert a force exceeding 1230 N at an angle of 34.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point particle. (a)Calculate

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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Question

(a)

Calculate the normal force (in N) on the sled when the magnitude of the applied force is 1230 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 donkey is exerting a force of 6.15 ✕ 10² N on the sled at the same angle. (Enter the magnitude.)

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