1. If the normal force exerted by the ground to the crate is 321N, which of the following is closest to the magnitude of the frictional force developed between the ground and the crate? 2. What is the resultant of the frictional force F and normal force N? Use coordinate axis system as indicated in #3

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Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 84AP: In Figure P1.84, the pulleys and the cord are light, all surfaces are frictionless, and the cord...
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Answer 1 and 2 asap thanks

1. If the normal force exerted by the ground to the crate is 321N, which of the following is closest to the magnitude of the frictional force developed between the ground and the crate?
2. What is the resultant of the frictional force F and normal force N? Use coordinate axis system as indicated in #3

 

At the instant shown, the 25kg wooden crate that Max is pushing slides up the hill. Treat the crate as a particle. Let Max's pushing force P be equal to 200N. The angles in the figure are measured from the horizontal. Use the indicated axes and coefficients of friction
Ps = 0.35 and pk = 0.28.
3. Which of the following best shows the force diagram of the crate for the instant shown?
A.
C.
P
10
P
10.6.
25
245N
245N
B.
D.
P
10
P
25
245N
245N
N
Transcribed Image Text:At the instant shown, the 25kg wooden crate that Max is pushing slides up the hill. Treat the crate as a particle. Let Max's pushing force P be equal to 200N. The angles in the figure are measured from the horizontal. Use the indicated axes and coefficients of friction Ps = 0.35 and pk = 0.28. 3. Which of the following best shows the force diagram of the crate for the instant shown? A. C. P 10 P 10.6. 25 245N 245N B. D. P 10 P 25 245N 245N N
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