メニセuc3)+2 B) +542で)て tて: Two masses of 14 kg and 7 kg connected by aflexible inextensible cord rest on inclined plane shownb twa upbelow. When the masses are released what will be thetension T in the cord? Assume the coefficient of frictionbetween the plane and the 14 kg mass is 0.25 andbetween the plane and 7 kg mass is 0.375.7 kgyod14 kg2845°REDMI NOTE 9 PROAI QUAD CAMERA

Answered: Image /qna-images/answer/109ef7ca-60a5-4b7e-9f82-aa0dbab5e758.jpg

Answered: : Two masses of 14 kg and 7 kg…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Consider the system shown below. The incline plane is fixed and the coefficient kinetic friction between M and 2M is ?1, and coefficient kinetic friction between the plane and 2M is ?2. Let M=2.0kg, ?=22o, ?1=0.14, and ?2=0.25. (a) What is the magnitude of the frictional force on mass M? (b) What is the magnitude of the total frictional force on mass 2M? (c) What is the acceleration of mass M? (d) What is the acceleration of mass 2M?
To climb a 400 meter high mountain, you have two options, a straight line route with a 40 ° slope or a route composed of 5 equal sections (same length) each with a 20 ° slope. If traveling in a car with a mass of 1280 kg and a maximum power of 88 kW, Determine (assume the whole car as a particle): a) Is the friction enough to prevent the car from sliding? The coefficient of static friction of the tires with the ground is 0.95. b) What is the power required to climb the 40 ° slope at a constant speed of 40 km / h? Does the car have enough power to go up at that speed? c) What is the constant speed at which the 40 ° slope can be climbed with a 60 kW power? d) What is the power required to climb a 20 ° slope at 40 km/h? Does the car has enough power to go up at that speed? e) In which of the two trajectories does the car do more work? Ignore the resistance of the air and rolling resistance and radius of curves between sections of the compound route. Please add the free body diagram.
Fred pushes a 55 kg refrigerator with a force P = 100 N inclined at 30° from the horizontal at 1.60 m from the floor as shown in the diagram. The coefficient of static friction between the floor and the refrigerator is 0.40.1. Which among the choices shows the limiting value of the frictional force between the refrigerator and the floor?A) 90.9 NB) 195.8 NC) 108.8 ND) 490 N2. Is the refrigerator not moving, moving, or on the verge of moving? Prove this through calculations.3) Write the correct moment equilibrium equation about A for the refrigerator. (Just use P, don't use P =100)
A block of mass m1 = 20Kg is attached by an ideal pulley to a block of mass m2 = 2.5 kg on the surface of a table, between the surface of the table and the block m1 there is a friction coefficient of 0.4. The system starts from rest when both masses have moved 0.75m. Calculate: A) The total work of the system. B) The speed of the system when it has traveled the 0.75m. C) The total work of the M1 mass. D) The speed of the m1 mass when it has traveled the distance of 0.75m. E) The speed of the mass m2 when it has traveled the distance of 0.75 m
(II) A 25.0-kg box is released on a 27° incline and accelerates down the incline 0.30 m/s2at Find the friction force impeding its motion. What is the coefficient of kinetic friction?
A 210 N block is set on a 30 degrees inclined plane with a coefficient of friction of 0.31. a. The minimum value of P that will hold the block in place if θ is zero is nearest to? b. The minimum value of P that will produce impending motion up the plane if θ is zero is nearest to? c. The smallest possible value of P that will produce impending motion up the plane if θ can be adjusted is nearest to?
If there is no friction between shaft AB and the collar, what angular velocity Ö must the mechanism have to keep the collar at r= 660 mm from the vertical axis? Consider the same mechanism again, with m = 3.3 kg, d = 275 mm, k = 180 N/m, only now, instead of being smooth, the collar and shaft have a maximumcoefficient of friction of 0.74. What is the minimum angular velocity required to keep the collar at a constant distance r= 660 mm from the axis of rotation?
A large shipping crate is at rest on the horizontal floor of a warehouse. The coefficient of static friction between the crate and the floor is μs = 0.500; the coefficient of kinetic friction is μk = 0.300. Assume that the estimation of the weight of the heaviest crate you could start sliding by pushing on it horizontally is about 100 lb. The magnitude of the maximum force can apply is 220N. With the same force, how far would the crate travel before reaching a speed of 8.0 m/s? Use the work-energy theorem.
A box slides from rest from point A down a plane inclined 30 degrees to the horizontal. After reaching the bottom of the plane, the box moves on the horizontal floor at a distance of 2 m before coming to rest. If the coefficient of friction between the box and plane and between the box and floor is 0.40, what is the distance of point A from the intersection of the plane and the floor?
In figure 2 show below, the body reaches a velocity of 12 m/ sec during traveling 30 m starting from rest moving with constant acceleration. Find the coefficient of friction between the body and ground? P =300 N , W = 200 N
2.5 kg block is initially at rest on a horizontal surface. A horizontal force of magnitude 5.8 N and a vertical force are then applied to the block. The coefficients of friction for the block and surface are ?s = 0.38 and ?k = 0.23. (a) Determine the magnitude of the frictional force acting on the block if the magnitude of is 8.0 N. N(b) Determine the magnitude of the frictional force acting on the block if the magnitude of is 10.0 N. N(c) Determine the magnitude of the frictional force acting on the block if the magnitude of is 12.0 N. N
6.4. A force of 300 N is sufficient to keep a 100-kg wooden crate moving at constant velocity across a wooden floor. What is the coefficient of kinetic friction?

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