7. A mass m₁ = 5.00 kg is connected by a light string that passes over a pulley of mass m3 = 7.5 kg to a mass m₂ = 6.50 kg sliding on a frictionless inclined surface that makes an angle of 33° with the horizontal (see figure). The coefficient of kinetic friction between the mass m₁ and the horizontal surface is 0.25. There is no slippage between the string and the pulley. What is the magnitude of the tension that is acting on mass m₁? (The moment of inertia of the pulley is 1/2Mr².) N ssf60 f60 ss? ssf60 sf60 sse 50 ssf60

7. A mass m₁ = 5.00 kg is connected by a light string that passes over a pulley of mass m3 = 7.5 kg to a mass m₂ = 6.50 kg sliding on a frictionless inclined surface that makes an angle of 33° with the horizontal (see figure). The coefficient of kinetic friction between the mass m₁ and the horizontal surface is 0.25. There is no slippage between the string and the pulley. What is the magnitude of the tension that is acting on mass m₁? (The moment of inertia of the pulley is 1/2Mr².) N ssf60 f60 ss? ssf60 sf60 sse 50 ssf60

Name: 7. A mass m₁ = 5.00 kg is connected by a light string that passes ove
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Description: 7. A mass m₁ = 5.00 kg is connected by a light string that passes over a pulley of mass m3 = 7.5 kg to a mass m26.50 kg sliding on a frictionless inclined surface that makes an angle of 33° with the horizontal (see figure). Thecoefficient of kinetic

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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A 0.400-kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s. (a) What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long? (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? (c) What is the tension in the pendulum cable when the pendulum reaches its highest point?
e.co CU ct sona- n ect Pool artment... W 24,919 8. A mass m₁ = 9.00 kg is connected by a light string that passes over a pulley of mass M = 14.0 kg to a mass m₂ = 12.5 kg sliding on a horizontal frictionless surface (see figure). There is no slippage between the string and the pulley. What is the magnitude of the tension that is acting on mass m₂? (The moment of inertia of the pulley is ½/Mr².) N # 3 20 $ 4 R 999 F4 % 5 FS ^ 6 tv © MacBook Air Y & 7 m₂ F7 * 8 Dall 1 ( 9 M m₁ A 02 DD ) 0 P ISULI H by mi 04 M vauies or roe puffer
4. A string pendulum 1.12 m long has a bob with a mass of 200 g. (a) What is the tension in the string when the pendulum is at rest? (b) What is the tension at the bottom of the swing, if the pendulum is moving at 1.2 m/s?
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
7. Figure A shows a weight-and-rope system held in equilibrium be means of two fixed and frictionless pulleys. If W1 id 50 N, find the values of W2 and W3. In the equilibrium configuration in the figure A, using frictionless pulleys, find the maximum value of W2 if the can sustain a tension of 200 N before breaking. Figure A.
3. A boy sits on a tire swing that is attached to a rope. The rope passes over a pulley fastened to the ceiling, and then passes back down to the boy's hands. If the weight of the boy plus the tire is w, what is the force with which the boy must pull on the free end of the rope to support the tire?
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)]. -
A 50.4 N force is applied to keep a blok of 24. 2 N on the side wall. The static and the kinetic friction coefficients are given as 0.60 and 0.40. Assume the blok is relased from stationary state, (.) a. Does the block start to move? b. What force the wall apply to the block?
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1 V:IV H.W.docx H.W: Two boxes are connected by a cord running over a pulley. The coefficient of kinetic friction between m, (5kg) and the table is 0.20. We ignore the mass of the cord and pulley and any friction in the pulley, which means we can assume that a force applied to one end of the cord will have the same magnitude at the other end. We wish to find the acceleration, a, of the system, which will have the same magnitude for both boxes assuming the cord doesn't stretch, As m (2Kg) move down, m,move to the right. m. د قوة الشد Tو تسارع النظام .a علما بأن البكرة مهملة الكتلة والاحتكاك؟ 出 1
1 V:IV H.W.docx H.W: Two boxes are connected by a cord running over a pulley. The coefficient of kinetic friction between m, (5kg) and the table is 0.20. We ignore the mass of the cord and pulley and any friction in the pulley, which means we can assume that a force applied to one end of the cord will have the same magnitude at the other end. We wish to find the acceleration, a, of the system, which will have the same magnitude for both boxes assuming the cord doesn't stretch. As m; (2Kg) move down, m, move to the right. m. د قوة الشد Tو تسارع النظام .a علما بأن البكرة مهملة الكتلة والاحتكاك؟ 出 l20 Son la 1
A rope pulls on the lower block in the figure with a tension force of 20 N. The coefficient of kinetic friction between the lower block and the surface is 0.16. The coefficient of kinetic friction between the lower block and the upper block is also 0.16. The pulley has no appreciable mass or friction. What is the acceleration of the 2.0 kg block?