A cord passing over a pulley connects two masses, as shown, where m, = 3.60 kg and m, = 7.10 kg. The system accelerates with a magnitude of 1.34 m/s?. The coefficient of kinetic friction between the masses and the incline is thesame for both masses. Assume the pulley is frictionless, and the cord is massless. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.)m2m,35.0°35.0°(a) What is the coefficient of kinetic friction?(b) What is the tension (in N) in the cord?

Draw the free-body diagram of the mass m2.

Answered: A cord passing over a pulley connects…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 8STP

See similar textbooks

Similar questions

According to a simplified model of a mammalian heart, at each pulse, approximately 20 g of blood is accelerated from 0.26 m/s to 0.35 m/s during a period of 0.10 s. What is the magnitude of the force exerted by the heart muscle? Express your answer to two significant figures and include the appropriate units. F= ______ units I got 0.02N but it is wrong.
In the figure, a slab of mass m1 = 40 kg rests on a frictionless floor, and a block of mass m2 = 10 kg rests on top of the slab. Between block and slab, the coefficient of static friction is 0.60, and the coefficient of kinetic friction is 0.40. A horizontal force F→ of magnitude 104 N begins to pull directly on the block, as shown. In unit-vector notation, what are the resulting accelerations of (a) the block and (b) the slab?
A body weighing 2,225 N is being dragged along a rough horizontal plane by a force of P = 445 N. If the coefficient of friction is 1/12 and the line of the pull makes an angle of 18 deg above the horizontal, what are the velocities acquired from rest in the first 3.65m and in the first 5.5m?
Show that the acceleration of any object down an incline where friction behaves simply (that is, where fk=μkN)fk=μkN) is a=g(sinθ−μkcosθ).a=g(sinθ−μkcosθ). Note that the acceleration is independent of mass and reduces to the expression found in the previous problem when friction becomes negligibly small (μk=0).(μk=0).
Block 1, of mass m1 = 0.700 kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2, as shown. For an angle of θ = 30.0 ∘ and a coefficient of kinetic friction between block 2 and the plane of μ = 0.250, an acceleration of magnitude a = 0.400 m/s2 is observed for block 2. Find the mass of block 2, m2? Express your answer numerically in kilograms.
Three forces act on an object, considered to be a particle, which moves with constant velocity v =(3 m/s)î +(−2 m/s)ĵ Two of the forces are shown in the picture below., while the third force, F_3 is not given. 1.) What are the x, y, and z components of F_3?
Given a drag coefficient of 0.42 kg/sec, the magnitude of the drag force (N) on a projectile moving with a speed of 8 m/s is
A force of magnitude 7.50 N pushes three boxes with masses m1=1.30kg ,m2=3.20kg, and m3=4.90kg. Find the magnitude of the contact force between boxes 1 and 2.
Two blocks, each of mass m = 2.1kg are pushed along the horizontal surface of a table by a horizontal force P of magnitude 7.1 N directed to the right, as shown in the figure below. The blocks move together to the right at constant velocity? Find the frictional force exertered on the lower block by the table ? Find the coefficient of kinetic friction between the surface of the block and the table? Find the frictional force acting on the upper block?
Consider the situation shown in the figure below, except assume that the table is inclined at an angle of 22°, with the pulley at the top of the incline. Does block A slide up or down the incline? Assume that the table is frictionless, mA = 0.72 kg, mB = 0.24 kg, and that the masses of the pulley and string are negligible.
In the following figure the horizontal surface on which this block slides has the coefficient of kinetic friction equal to 0.03. If the two forces acting on it each have magnitude F=40N and M=10kg, find the magnitude and directionof the resulting acceleration fo the block?
A 100kg block slides on the floor with an initial speed of 6.4 m/s. Ifthe coefficient of kinetic friction between the block and the floor is 0.46,what is the player’s acceleration? How far did he slide?

SEE MORE QUESTIONS

Recommended textbooks for you

Glencoe Physics: Principles and Problems, Student…

Physics

ISBN:

9780078807213

Author:

Paul W. Zitzewitz

Publisher:

Glencoe/McGraw-Hill

Classical Dynamics of Particles and Systems

Physics

ISBN:

9780534408961

Author:

Stephen T. Thornton, Jerry B. Marion

Publisher:

Cengage Learning

Glencoe Physics: Principles and Problems, Student…

Physics

ISBN:

9780078807213

Author:

Paul W. Zitzewitz

Publisher:

Glencoe/McGraw-Hill

Classical Dynamics of Particles and Systems

Physics

ISBN:

9780534408961

Author:

Stephen T. Thornton, Jerry B. Marion

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS