An engine is used to pull a train of two cars out of a mine. The floor of the mine slopes upward at an angle of 30 degrees. Each car has a mass of 10^4 kg and travels without friction. The engine can exert a max force of 1.5 * 10^5 N on car Aa) The engine first accelerates the cars from rest by exerting its maximum force. What is the acceleration of the cars?b) Once the train has reached a reasonable speed, the engineer throttles back so they continue at a constant speed. Now what force does the engine exert on car A?c) What is the tension in the massless, straight chain connecting cars A and B while they are traveling at a constant speed?

Q: In the figure, a crate of mass m = 89 kg is pushed at a constant speed upa frictionless ramp (0 =…

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Q: An object accelerates at 4m/s2 due to a 20N force applied to it. (a) What amount of force is needed…

A: Given data: Magnitude of acceleration is, a=4 m/s2. Magnitude of applied force is, F=20 N.

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Q: applied force of 25.0 N is used to accelerate an object horizontally to the right across a…

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Q: A dockworker applies a constant horizontal force of 80.0 N to a block of ice on a smooth horizontal…

A: a) Using kinematic equation, the expression for find acceleration is s=ut+12at2a=2st2 Insert values…

Q: Three forces acting on an object are given by  F1 = (−1.6î + 6.55ĵ) N, F2 = (4.75î − 1.2ĵ) N, and…

A: Given : F1 = (−1.6î + 6.55ĵ) N F2 = (4.75î − 1.2ĵ) N F3 = (−44.5î) N Acceleration (a) = 3.90 m/s2

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A: Given  Force exerted by worker F=400N f=100N angle q=30 mass of crate m=300kg

Q: 2. A 2.75-kg cat moves in a straight line (the x- axis). The figure shows a graph of the x- v̟ (m/s)…

A: Mass, m = 2.75 kg  The slope of velocity time graph represents acceleration.

Q: Three forces acting on an object are given by F, = (-1.9î + 5.80j) N, F, = (4.95î - 2.15j) N, and F,…

A: F1→ = (-1.9i^+5.8 j^) F2→ = (4.95i^ - 2.15 j^) F3→ = (-44i^) Acceleration , a = 3.6 m/s2 . To find =…

Q: Kercey pushes a 6.7-kg crate along a rough surface with 27.43 N of force. He observes that it is…

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Q: A delivery company has unloaded a 35 kgkg crate in your driveway. The coefficient of static friction…

A: Mass of the crate (m)=35 kg Coefficient of kinetic friction (μ)=0.2 Acceleration of the crate (a)=5…

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Q: A student decides to move a box of books into her dormitory room by pulling on a rope attached to…

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Q: ) Which of the following statements is correct? They both experience the same force. The force…

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Q: Three forces acting on an object are given by F, = (-2.15î + 6.80j) N, F, = (4.80î – 2.5j) N, and F,…

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Q: A 1,250 kg car is moving due to 6,500 N engine force. If the kinetic friction coefficient between…

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Q: . A biker is accelerating when she applies the brakes and then speeds up again. The net horizontal…

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Q: fisherman is fishing from a bridge and is using a "65-N test line." In other words, the line will…

A: Let w =weight of fish = m×g    Also , F = 65N   a) At constant speed, acceleration = a= 0    So,…

Q: 2. A man is pulling a crate that has a mass of 50kg and it attains a velocity of 4 m/s after moving…

A: Given Mass of the crate is m=50 kg Final velocity of the crate is vf=4 m/s Angle of the applied…

Q: 4.6 kg toy race car can move along an x axis. The figure below gives Fx of the force acting on the…

A: Given, Mass of toy car ,m = 4.6 kg The graph of Fx vs t. We know that area under acceleration vs…

Q: A crate with a mass of 3.00 kg starts from rest at the top of a 29.5° incline and slides 2.00 m down…

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Q: A 7-kg box slides across a frictionless surface.  If a 50 N force is applied on it, find its…

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Q: In the figure below, the net external force on the 28 kg mower is given as 52 N. If the force of…

A: Mass of mower (m) = 28 kg Net external force on the mover (Fnet) = 52 N Force of friction (f) = 10 N…

Q: Three forces acting on an object are given by F, (-2.351 + 6.95j) N, F, (4.701 - 1.65j) N, and F,…

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Q: the figure, a crate of mass m = 94 kg is pushed at a constant speed up a frictionless ramp (e = 31°)…

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Q: A single-celled animal called a paramecium propels itself quite rapidly through water using its…

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Q: A 1.3 kg box of frozen chocolate chip waffles is pulled across a table by a rope at t1 = 0s. The…

A: The rectangular components of a vector F are horizontal component Fcos60=4×12=2 N vertical component…

Q: In the figure below, the net external force on the 28 kg mower is given as 56 N. Fnet If the force…

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Q: The three forces acting on an object are given by F1=(-5.00i+7.00j)N, F2=(10.00i-13.00j)N, and…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A heavy ball is thrown straight upward. After the ball leaves the thrower's hand, what forces act on…

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Q: A 18kg crate is pushed across the floor, using a force that makes an angle of 21 degrees with the…

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Q: A man is exerting a constant 150 N horizontal force to push a 20 kg wooden crate upwards along a…

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Q: A force applied to an object of mass m, produces an acceleration of 3.70 m/s². The same force…

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Q: A 100-g box slides across a frictionless horizontal plane. If it is accelerating at 15 m/s2, find…

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Q: Three forces acting on an object are given by F, = (-2.1î + 6.85j) N, F2 = (4.50î – 2.15j) N, and F3…

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Q: In the figure, a crate of mass m = 99 kg is pushed at a constant speed up a frictionless ramp (0 =…

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Q: You drop from rest from a platform 10.0 m10.0 m above the surface of a 6.00 m6.00 m deep pool.…

A: By principle, the work done by gravity should be equal to the work done by water in opposite…

Q: You work at a garden store for the summer. You lift a bag of fertilizer with a force of 114 N, and…

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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?”