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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition | ISBN: 9780321740908 | Authors: Randall D. Knight
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Answer: In are given the dynamics equations that are used

Chapter 6, Problem 71P

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QUESTION:

Problem 71P

In Problem you are given the dynamics equations that are used to solve a problem. For the of this, you are to

a. Write a realistic problem for which these are the correct equations.

b. Draw the free-body diagram and the pictorial representation for your problem.

c. Finish the solution of the problem.

(100 N) cos 30° − fk = (20 kg)ax

n + (100 N) sin 30° − (20 kg)(9.80 m/s2) = 0

fk = 0.20n

Questions & Answers

QUESTION:

Problem 71P

In Problem you are given the dynamics equations that are used to solve a problem. For the of this, you are to

a. Write a realistic problem for which these are the correct equations.

b. Draw the free-body diagram and the pictorial representation for your problem.

c. Finish the solution of the problem.

(100 N) cos 30° − fk = (20 kg)ax

n + (100 N) sin 30° − (20 kg)(9.80 m/s2) = 0

fk = 0.20n

ANSWER:

Step 1 of 4

First we need to write the realistic problem

We have to draw the free diagram

We need to calculate the acceleration along \(x\) axis

 

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