Consider two blocks connected by a string (call this the internal string) and being pulled vertically upward by another string (the external string) attached to block A. Suppose that blocks A and B have masses of 3.0 kg and 2.0 kg, respectively, and suppose that the external string’s tension has a magnitude of 55 N. The internal string’s mass is 100 g. Find the acceleration of the system, the magnitude of the tension force on block B, and the difference in the magnitudes of the tension forces exerted by each end of the string.    The acceleration of the system is ______ m/s2.   The tension force on block B is ____ N.   The difference in the magnitudes of the tension forces exerted by each end of the string is ______ N.

Q: Two crates connected by a rope lie on a horizontal surface (Figure 1). Crate A has mass mA and crate…

A: A has mass mA and crate B has mass mBThe crates are pulled to the right at a constant velocity by a…

Q: A block with mass of  m1=2 kg is placed on top of a block with a mass m2=4kg. A horizontal force…

A: Given  The mass of the first block is m1 = 2 kg. The mass of the second block is m2 = 4 kg. The…

Q: In the figure, a slab of mass m₁-43.1 kg rests on a frictionless floor, and a block of mass m₂ -…

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Q: A block of mass M is suspended at rest by two strings attached to walls, as shown in the figure. The…

A: We can solve the problem by considering the equilibrium condition as below.

Q: (a) A 850 kg truck is traveling at a constant speed of 1.31 m/s due north. What is the total force…

A: From Newton's 2nd law of motion we know that Net force  F=Ma Where, M is mass of the object and a is…

Q: Two forces FA and FB are applied to an object whose mass is 15.5 kg. The larger force is FA . When…

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Q: Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with…

A:

Q: A crate of mass  m = 29 kg  rides on the bed of a truck attached by a cord to the back of the cab…

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Q: A woman uses a rope to pull a block of mass m across a level floor at a constant velocity. The…

A: Solution:   The algebraic expression for the tension in the rope is calculated by using the below…

Q: Two forces FA and FB are applied to an object whose mass is 19.9 kg. The larger force is FA. When…

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Q: Two forces,  and , act on the 7.00-kg block shown in the drawing. The magnitudes of the forces are…

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Q: A horizontal force, F1 = 55 N, and a force, F2 = 16.3 N acting at an angle of θ to the horizontal,…

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Q: Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with…

A:

Q: Enter an expression for the acceleration of either block. 4. What is the numerical value, in…

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Q: You push your 2 kg textbook with a constant force of 100.0 N across a surface with zero coefficient…

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Q: In Figure (a), a constant horizontal force F a is applied to block A, which pushes against block B…

A: combined mass of two blocks = ma+mb=11 kg let force excerted by block A on block B = F1= 20 N force…

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: A gust of wind blows an apple from a tree. As the apple falls, the force of gravity on the apple is…

A: Given Data: The downward force of gravity is, Fg=9.25 N The force due to the wind is, Fw=1.05 N…

Q: Two blocks are connected by a massless rope. The rope passes over an ideal (frictionless and…

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Q: Two blocks connected by a light horizontal rope sit at rest on a horizontal, frictionless surface.…

A:

Q: let the mass of the block be 8.5 kg and the angle be 30. Find (a) the tension in the cord and (b)…

A: The weight of the block can be resolved in to vertical and horizontal component. a. The net force…

Q: In the figure, a slab of mass m₁ - 43.1 kg rests on a frictionless floor, and a block of mass m₂…

A:

Q: A 1020 kg car is pulling a 285 kg trailer. Together, the car and trailer have an acceleration of…

A: According to Newton's second law F = ma

Q: An object of mass m1 = 5.00 kg placed on a frictionless, horizontal table is connected to a string…

A:

Q: Consider a 26.8-kg box on a ramp angled at 30.5 degrees above the horizontal. The coefficient of…

A: Given: The mass of the box is 26.8 kg. The angle of the inclination is 30.5o. The coefficient of the…

Q: A sled of mass 87 kg is being pushed up a slope with an applied force of 853 N. The slope is…

A: applied force = 853 N weight along incline = 87 * 9.8 * sin(34) = 476.77 Nfrictional force = 87 *…

Q: A contestant in a winter sporting event pulls an m kg block of ice across a frozen lake by applying…

A:

Q: Body A in the figure weighs 110 N, and body B weighs 86 N. The coefficients of friction between A…

A: (a)   Since the body A is initially at rest, its acceleration will be zero. Thus,

Q: Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with…

A:

Q: The rocket sled shown in the figure accelerates to the right at a rate of 68.6 m/s². Its passenger…

A: Given data- The rocket sled shown in the figure accelerates to the right at a rate of a=68.6 m/s2 .…

Q: A block of mass M is suspended at rest by two strings attached to walls, as shown in the figure. The…

A:

Q: In Figure (a), a constant horizontal force a is applied to block A, which pushes against block B…

A:

Q: You want to move a heavy box with mass 30.0 kg across a carpeted floor. You pull hard on one of the…

A: Write the given values with the suitable variables. m=30 kgθ=30°F=240 Nf=41.5 N Here, m, θ, F, and f…

Q: 2.2 Three blocks m₁, m2, and m3 are connected and pulled to the right on a horizontal frictionless…

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Q: A person of mass M = 60 kg lifts an object of mass m = 10 kg upward with acceleration a. If the…

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Q: A block of mass m1 = 38.4 kg on a horizontal surface is connected to a mass m2 = 15.2 kg that hangs…

A: on m2: m2g - T = m2a  15.2g - T = 15.2a ________________(1) on m1: T = m1aT = 38.4a ______________…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”