10. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. Compute the value of the horizontal force P necessary to Just prevent motion down the incline. A. 100KN B. 200KN C. 300KN D. 400KN 11. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. If P=400, What is the amount and direction of the friction force. A. 340KN B.440KN C. 540KN D. 640KN

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10. The 500KN is in contact with a 450 inline. The coefficient of static friction is 0.25. Compute the value of the horizontal force P necessary to Just prevent motion down the incline.

11. The 500KN is in contact with a 450 inline. The coefficient of static friction is 0.25. If P=400, What is the amount and direction of the friction force.

8. A 400KN block is resting on a rough horizontal surface for which the
coefficient of friction is 0.40. What minimum force is required to start motion?
A. 138.5KN
B. 148.5KN
C. 158.5KN
D. 168.5KN
For question no. 9, 10, and 11 refer to the figure below.
500
9. The 500KN is in contact with a 45° inline. The coefficient of static friction is
0.25. Compute the value of the horizontal force P necessary to Just start the
block up the incline.
A. 822KN
B. 832KN
C. 842KN
D. 852KN
10. The 500KN is in contact with a 45° inline. The coefficient of static friction is
0.25. Compute the value of the horizontal force P necessary to Just prevent
motion down the incline.
A. 100KN
B. 200KN
C. 300KN
D. 400KN
11. The 500KN is in contact with a 45° inline. The coefficient of static friction is
0.25. If P=400, What is the amount and direction of the friction force.
A. 340KN
B.440KN
C. 540KN
D. 640KN
12. A 50 g mass hangs at the end of the spring. When 20 grams more are added
to the end of the spring, it stretches 7 cm more. Find the spring constant.
A. 2.8
В. 2.9
C. 4.
D. 2.5
13. How much tension must a rope withstand if it used to accelerate 1200 kg
car vertically upward at 080 m/s??
Transcribed Image Text:8. A 400KN block is resting on a rough horizontal surface for which the coefficient of friction is 0.40. What minimum force is required to start motion? A. 138.5KN B. 148.5KN C. 158.5KN D. 168.5KN For question no. 9, 10, and 11 refer to the figure below. 500 9. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. Compute the value of the horizontal force P necessary to Just start the block up the incline. A. 822KN B. 832KN C. 842KN D. 852KN 10. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. Compute the value of the horizontal force P necessary to Just prevent motion down the incline. A. 100KN B. 200KN C. 300KN D. 400KN 11. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. If P=400, What is the amount and direction of the friction force. A. 340KN B.440KN C. 540KN D. 640KN 12. A 50 g mass hangs at the end of the spring. When 20 grams more are added to the end of the spring, it stretches 7 cm more. Find the spring constant. A. 2.8 В. 2.9 C. 4. D. 2.5 13. How much tension must a rope withstand if it used to accelerate 1200 kg car vertically upward at 080 m/s??
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