m F 0 You are pressing a box against a sloped ceiling, perpendicular to the ceiling itself, as shown in the figure. The mass of the box is m=3.3 kg, the angle of the ceiling is 8=37°, and the coefficients of friction are us=0.31 and μk=0.2. (a) What is the minimum force needed from you to keep the box at rest? N (b) Choosing up the sloping ceiling to be the positive direction, suppose you push with a force 4 N smaller than your answer to the previous part. What will be the acceleration of the box? m/s2
m F 0 You are pressing a box against a sloped ceiling, perpendicular to the ceiling itself, as shown in the figure. The mass of the box is m=3.3 kg, the angle of the ceiling is 8=37°, and the coefficients of friction are us=0.31 and μk=0.2. (a) What is the minimum force needed from you to keep the box at rest? N (b) Choosing up the sloping ceiling to be the positive direction, suppose you push with a force 4 N smaller than your answer to the previous part. What will be the acceleration of the box? m/s2
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![m
F
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You are pressing a box against a sloped ceiling, perpendicular to the ceiling itself, as shown in the figure. The mass of the box is m=3.3 kg, the angle of the ceiling is 0=37°, and the coefficients of friction are μs-0.31 and μk=0.2.
(a) What is the minimum force needed from you to keep the box at rest?
N
(b) Choosing up the sloping ceiling to be the positive direction, suppose you push with a force 4 N smaller than your answer to the previous part. What will be the acceleration of the box?
m/s²](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b3b5d99-82ff-4b2c-a339-8b5827a89088%2F8cd7c8a4-a136-4aed-8d78-e34a32d33f96%2F8hoxo1_processed.png&w=3840&q=75)
Transcribed Image Text:m
F
0
You are pressing a box against a sloped ceiling, perpendicular to the ceiling itself, as shown in the figure. The mass of the box is m=3.3 kg, the angle of the ceiling is 0=37°, and the coefficients of friction are μs-0.31 and μk=0.2.
(a) What is the minimum force needed from you to keep the box at rest?
N
(b) Choosing up the sloping ceiling to be the positive direction, suppose you push with a force 4 N smaller than your answer to the previous part. What will be the acceleration of the box?
m/s²
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