6. A 1.60 kg box rests on a plank that is inclined at an angle of 58.0° above the horizontal. The upper end of the box is attached to a spring with a force constant of 16.0 N/m, as shown in the figure. If the coefficient of static friction between the box and the plank is 0.27, what is the maximum amount the spring can be stretched and the box remain at rest? m wwww

6. A 1.60 kg box rests on a plank that is inclined at an angle of 58.0° above the horizontal. The upper end of the box is attached to a spring with a force constant of 16.0 N/m, as shown in the figure. If the coefficient of static friction between the box and the plank is 0.27, what is the maximum amount the spring can be stretched and the box remain at rest? m wwww

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 54AP: A 0.400-kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s. (a) What...

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I have a shelf full of textbookd.Each book has a mass of 1.0 kg and mus=0.3. a. How hard do I need to push horizontally to unstick the top book from the rest of the pile? b. How many books can I unstick from the top of the pile if I push with a force of 16N?
9. Two friends are carrying a 500 N wooden slab along a 45° stairway. The slab is 1.0 m long and 0.40 m high. They each apply vertical upward force (black arrows) on the bottom edges of the box in such a way that the box remains parallel to the stairs as shown in the figure. What are the magnitudes of the forces exerted by the lower and higher friend, respectively? A. 250 N and 250 N B. 300 N and 200 N C. 350 N and 150 N D. 400 N and 100 N 45⁰
3. a. You put this large blow up Halloween decoration in your yard. The wind is blowing it to the left with 232.5 N. It stays put becuase it's supported by the rope. 0 = 58 degrees. The mass of the pumpkin is 9.55 kg. What is the tension in the rope? Previous submissions: T 615.38 b. What is FN of the ground pushing up on the pumpkin? Previous submissions: N
A 2.00-kg block is at rest on a horizontal plank that is 1.50 m long. When one end of the plane is raised to 0.50 m, the block starts sliding down. What is the coefficient of static/starting friction between the block and the plank? O 0.43 O 0.35 0.33 O 0.53
1. A 30 kg rests on a horizontal surface. What is the minimum horizontal force that is required to cause the box to begin to slide if the coefficient of static friction is 0.45? What is the acceleration of the system if a person pushes the box with a force of 95 N if the coefficient of kinetic friction is 0.25? 2. What fore is required to punch a 20mm diameter hole in a plate that is 25 mm thick? The shear strength is 350 MN/m2 3. A professional athlete finishes a 100 m run in 12.3 s. Calculate the average velocity of the athlete for the entire run
2. Determine the minimum value of P to just lift the block W = 500 N, where 0 = 20°, as shown. The coefficient of static friction at all contact surfaces is Hs = 0.30. Neglect the weight of the wedge. W
5. A 1.95 kg box rests on a plank that is inclined at an angle of 60.0° above the horizontal. The upper end of the box is attached to a spring with a force constant of 18.0 N/m, as shown in the figure. If the coefficient of static friction between the box and the plank is 0.30, what is the maximum amount the spring can be stretched and the box remain at rest? T60 ssf60 ssf60 ss0 SSN60 ssf60 St60 ssf60 ssf60 ssf60 ssf60 ssio Yossf60 ssf60 ssf60 ssfó 60 ssf60 s sf60 ssf60 ssf60 sf60 ssf60 60 ssf60 ss
A push of magnitude P acts on a box of weight W as shown in the figure. The push is directed at an angle 0 below the horizontal, and the box remains a rest. The box rests on a horizontal surface that has some friction with the box. The normal force on the box due to the floor is equal to: O W + P cos 0. O W + P sin 0. OW-P sin 0. O W + P. O W. W 0 P
Situation 2. A 500 N block is resting on an inclined plane. See figure below. coefficient of static friction, Hs 0.3, coefficient of kinetic friction, Hx = 0.2 P. s = 0.3 fn = 0.2 0=30° 7. Find the value P that will still make the block in equilibrium condition. а. 382 N b. 71 N с. 110 N d. 279 N
8. A block is at rest on a rough inclined plane and is connected to an object with the same mass as shown. The rope may be considered massless; and the pulley may be considered frictionless. The coeffi- cient of static friction between the block and the plane is us; and the coefficient of kinetic friction is k 0 A. g D. g - Hk sin(0) m a. What is the magnitude of the static frictional force acting on the block? B.m g [1 - sin(0)] C. mg D. mg cos(0) B. g - Hk cos(0) A. m g sin(0) E. mg [1 - cos(0)] b. If the rope were cut between the block and the pulley, what would be the magnitude of the acceleration of the block down the plane? C. g [sin(0) - μ cos(0)] sin(0)] c. If the mass of the suspended object is doubled, what will be the acceleration of the block up the plane? B. g [2 tan(0) - uk sin(0)] D. 2g [μ sin(0) - cos(0)] m E. g [tan (0) A. g [2 - μk sin(0)] C. g [2 cos(0) - μ sin(0)] E. g [2 sin(0) Hk Cos (0)]. -
6. A box is on a ramp inclined at 25° to the horizontal. The coefficient of static friction is .30, and of kinetic friction .20. 1²=30 pe Me=20m a. The box slides down the ramp. b. The box stays on the ramp without slipping. c. The box first slips, but then stays fixed after slowing down. d. We need the mass of the box to answer the question. 3250 www th mg OL M = mg COSTS