COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 20QAP
To determine
Minimum coefficient of static friction between the sport utility vehicle (SUV)'s tires and the road, if it drives up a slope of
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A 1.0-kg block is place on a ramp with angle of inclination of 30.0 degrees. Assuming there is no friction between the block and the ramp, what
minimum force magnitude is needed to keep the block in place?
a. 8.48 N
O b. 14.70 N
O c. 4.90 N
d. 9.80 N
A force of 3.6 N makes an angle of 40° (counter-clockwise) with the +X axis. The Y component of the force is
N.
O a. -1.30 N
O b. 2.31 N
O c.3.02 N
O d. 2.76 N
A rectangular block of mass 10 kg is allowed to slide down a rough slope which is inclined at an angle of 20. What is the acceleration of the blovk, if the coefficient of the kinetic friction between the block and the slop= 0.15?
A. 2 m/s^2
B. 3.5 m/s^2
C. 2.5 m/s^2
D. 3.0 m/s^2
E. 1 m/s^2
Chapter 5 Solutions
COLLEGE PHYSICS
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- A 10kg block is pressed against a vertical wall and held in place by a force F of 150 N, 37 degrees above the horizontal. The coefficient of static friction is μs= 0.10. The magnitude and direction of the frictional force is A. 12 N downward B. 12 N upward C. 0.0 N D. 7.7 N downward E. 7.7 N upwardarrow_forward14. Compute the minimum distance that a truck slides on a horizontal asphalt road if it is traveling at 20 m/s. The coefficient of sliding friction between asphat and rubber tire is 0.50. The mass of the truck is 8000 kg. a. 40.8 m b. 48.5 m с. 35.3 m d. 31.4 m a b C darrow_forward6. The coefficient of kinetic friction between the block and the inclined surface of the figure below is 0.3 and the coefficient of static friction is 0.9. Each block is 1 kg. The pulley is frictionless and the string is massless. What is the magnitude of the acceleration of the blocks if the system is released from rest? A. 0 m/s² B. 0.55 m/s² C. 0.97 m/s² D. 1.3 m/s² E. 2.2 m/s² ys 1AC 1kg 1kg 40⁰arrow_forward
- Consider a 2.00 kg box on a frictionless plane that is inclined at an angle of 300 with the horizontal. A force F is applied on the box with the direction parallel to the incline as shown in the figure. INCLINE 1. What is the magnitude of the normal force exerted by the plane on the box? A. 9.81 N B. 11.3 N C. 17.0 N D. 19.6 N Farrow_forwardA 140N horizontal force is needed to pull a 60.0kg box across the horizontal floor at constant speed. What is the coefficient of friction between the floor and box? A. 0.500 B. 0.067 C. 0.238 D. 0.543arrow_forwardA gardener mows a lawn with an old- fashioned lawn mower. The handle of the mower makes an angle of 20° with the surface of the lawn. If a 219 N force is applied along the handle of 19 kg mower, what is the normal force exerted by the lawn on the mower? A. 100 N B. 640 N C. 111 N D. 310 N E. 250 Narrow_forward
- A 60 kg block rests on a rough plane inclined at 30 deg with the horizontal. The coefficient of sliding friction between block and plane is 0.15. What force P parallel to the plane is required to keep the block moving up the plane at constant speed? a. 88 N b. 218 N c. 294 N d. 370 Narrow_forward9. 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. 852KNarrow_forward17. A force F is used to hold a block of mass m = 4.62 kg on an incline as shown in the diagram. The plane makes an angle of 0 = 26.9° with the horizontal and F is perpendicular to the incline. The coefficient of static friction between the plane and the block is 0.206. What is the minimum force, F, necessary to keep the block at rest? F a. 59.1 N b. 118 N c. 45.3 N d. 19.6 N e. 88.6 Narrow_forward
- A force of 2.2 N makes an angle of 21° (counter-clockwise) with the +X axis. The X component of the force is _N. O a. 0.79 N b. 2.05 N O c. -2.21 N d. 0.84 Narrow_forwardA 15-kg block rests on a level frictionless surface and is attached by a light string to a 5.0-kg hanging mass where the string passes over a massless frictionless pulley. If g = 9.8 m/s2, what is the tension in the connecting string? a. 65 N b. 17 N c. 49 N d. 37 Narrow_forwardWhat is the effective horizontal component applied on the box that is being pulled by a 30 N force at 30 degrees with the horizontal? A. 20.62 N B. 36.21 N C. 15.32 N D. 25.98 Narrow_forward
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