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1. A bicycle and a rider together have a mass of 90kg. If the bicycle moves at 6.0 m/s, how much force is needed to bring it to stop in 5.0 s?

1. A bicycle and a rider together have a mass of 90kg. If the bicycle moves at 6.0 m/s, how much force is needed to bring it to stop in 5.0 s?

College Physics
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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Friction.

 

C. In each of the following situations state what effect the change will have on friction using the following choices. 18.Two pieces of rubbing metal are moved from earth to outer space. 19.Applying floor wax in a classroom. a. Increase b. Decrease c. No change 20. Gymnasts apply some coarse substance on their hands. III. Solve the following problems completely. 1. A bicycle and a rider together have a mass of 90kg. If the bicycle moves at 6.0 m/s, how much force is needed to bring it to stop in 5.0 s? 2. A 100N table is pushed by a horizontal force of 40N for 3s. What is the velocity of the table after 3s? the coefficient of the kinetic friction between the floor and table is 0.25.
Transcribed Image Text:C. In each of the following situations state what effect the change will have on friction using the following choices. 18.Two pieces of rubbing metal are moved from earth to outer space. 19.Applying floor wax in a classroom. a. Increase b. Decrease c. No change 20. Gymnasts apply some coarse substance on their hands. III. Solve the following problems completely. 1. A bicycle and a rider together have a mass of 90kg. If the bicycle moves at 6.0 m/s, how much force is needed to bring it to stop in 5.0 s? 2. A 100N table is pushed by a horizontal force of 40N for 3s. What is the velocity of the table after 3s? the coefficient of the kinetic friction between the floor and table is 0.25.
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