1. To move a large crate across a rough floor, you push down on it at an angle 0 = 23°, as shown in the figure. Find theforce necessary to start the crate moving, given that the mass of the crate is m = 31.0 kg and the coefficient of staticfriction between the crate and the floor is 0.65. 2. A child slides down a slide with a 25° incline, and at the bottom her speed is precisely one-fourth what it would havebeen if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.

Note: Since you have asked two questions, I will answer only the first one. Please post the second…

1. To move a large crate across a rough floor, you push down on it at an angle 0 = 23°, as shown in the figure. Find the force necessary to start the crate moving, given that the mass of the crate is m = 31.0 kg and the coefficient of static friction between the crate and the floor is 0.65.

1. To move a large crate across a rough floor, you push down on it at an angle 0 = 23°, as shown in the figure. Find the force necessary to start the crate moving, given that the mass of the crate is m = 31.0 kg and the coefficient of static friction between the crate and the floor is 0.65.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter3: Vectors And Two-Dimensional Motion

Section: Chapter Questions

Problem 8WUE: A catapult launches a large stone from ground level at a speed of 45.0 m/s at an angle of 55.0 with...

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Concept explainers

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

1. To move a large crate across a rough floor, you push down on it at an angle 0 = 23°, as shown in the figure. Find the
force necessary to start the crate moving, given that the mass of the crate is m = 31.0 kg and the coefficient of static
friction between the crate and the floor is 0.65.

2. A child slides down a slide with a 25° incline, and at the bottom her speed is precisely one-fourth what it would have
been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.

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