A loaded penguin sled weighing 80 N rests on a plane inclined at angle 0= 20° to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.15. A) What is the least magnitude of the force F, parallel to the plane, that will prevent the sled from slipping down the plane ? B) What is the minimum magnitude F that will start the sled moving up the plane ? C) What value of F is required to move the sled plane at constant velocity? dn the

A loaded penguin sled weighing 80 N rests on a plane inclined at angle 0= 20° to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.15. A) What is the least magnitude of the force F, parallel to the plane, that will prevent the sled from slipping down the plane ? B) What is the minimum magnitude F that will start the sled moving up the plane ? C) What value of F is required to move the sled plane at constant velocity? dn the

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 47P: (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her...

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

A loaded penguin sled weighing 80 N rests on a plane
inclined at angle 0= 20° to the horizontal (see the
figure). Between the sled and the plane, the coefficient
of static friction is 0.25, and the coefficient of kinetic
friction is 0.15.
A) What is the least magnitude of the force F, parallel to
the plane, that will prevent the
sled from slipping down the plane ?
B) What is the minimum magnitude F that will start the
sled moving up the plane ?
C) What value of F is required to move the sled up the
plane at constant velocity?

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