If you want to move a wooden crate along the ground, you will need to apply a force to get it started and to keep it moving. This is because there is a force exerted by the ground on the crate, parallel to the surface of the ground that opposes motion or attempted motion. This parallel force between surfaces in contact is called the friction force Ff. Make a few predictions: Q13 A wooden crate is sitting at rest on a horizontal table. There is no attempt to move it. Is there a friction force between the block and the table? Q14 Now suppose that you pull on a string attached to the crate, harder and harder, and the crate doesn't move because the friction force opposes your pull. F As you pull harder, does Frincrease, decrease, or remain constant? Q15 Now suppose that you pull hard enough that the crate breaks free and moves along the table. Based on your everyday experience, is the force needed to almost get the crate sliding with constant velocity generally greater than / less than / equal to the force needed to keep the block sliding (highlight your choice).

If you want to move a wooden crate along the ground, you will need to apply a force to get it started and to keep it moving. This is because there is a force exerted by the ground on the crate, parallel to the surface of the ground that opposes motion or attempted motion. This parallel force between surfaces in contact is called the friction force Ff. Make a few predictions: Q13 A wooden crate is sitting at rest on a horizontal table. There is no attempt to move it. Is there a friction force between the block and the table? Q14 Now suppose that you pull on a string attached to the crate, harder and harder, and the crate doesn't move because the friction force opposes your pull. F As you pull harder, does Frincrease, decrease, or remain constant? Q15 Now suppose that you pull hard enough that the crate breaks free and moves along the table. Based on your everyday experience, is the force needed to almost get the crate sliding with constant velocity generally greater than / less than / equal to the force needed to keep the block sliding (highlight your choice).

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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