For each of the situations given, state whether frictional forcesdo positive, negative, or zero work on the italicized object.(a) A plate slides across a table and is brought to rest by friction.(b) A person pushes a chair at constant speed across arough, horizontal surface. (c) A box is set down on a stationaryconveyor belt. The conveyor belt is then turned on and the boxbegins to move, being carried along by the belt. (d) A personexerts a horizontal force on a banana at rest on a counter top.The banana remains at rest.

Q: A 5 kg object is pulled diagonally with 20 degrees angle by a 12N force on a surface with a…

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Q: Three clowns move a 275 kg crate 10.5 m to the right across a smooth floor. Take the positive…

A: The expression for the work done is as follows: W=F→·d→W=Fdcosθ               1 The expression to…

Q: Can I have an answer for this one, please?

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Q: find (a) the work done by the applied force, (b) the the energy lost due to friction, (c) the change…

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Q: A 1200-kg car is being driven up a 5.0° hill with a force F. A frictional force acts on the car with…

A: If we apply a force bigger than the force of resistance, then the object will move faster and the…

Q: A horizontal force of 150 N is used to push a 38.0-kg packing crate a distance of 7.00 m on a rough…

A: (a) The work done by the force is

Q: A golfer hit a 40.80 gram golf ball from the fairway giving it an initial velocity of 35.4 m/s.  It…

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Q: A block of mass 2.5 kg, which has an initial velocity of 4.4 m/s at time t = 0, slides on a…

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Q: Asoccer player strikes a 428gramball with an initial velocity of 27.4m/s. The ball strikes the…

A: Given data:  Mass of ball (m) = 428 g = 0.428 kg Initial velocity (Vi) = 27.4 m/s Final velocity…

Q: A heavy box ins pushed on a honzontal oor or a straight sedion of length L by mearn of a force of…

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Q: A 2.1 kg object slides across a horizontal surface with an initial speed of 5.77 m/s. If the object…

A: Mass (m) = 2.1kgInitial velocity (Vi) = 5.77 m/sFinal velocity (Vf) = 0 m/sRequired:Work done by…

Q: An Alaskan dog sled racer pulls his 75.0 kg sled at an angle of 40.0 degrees to the ground. He…

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Q: There is a Cathedral-of-Learning race in Pittsburgh in which participants run up and down the steps…

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Q: (a) The Eskimo pushes the same 50.0-kg sled over level ground with a force of 1.95 x 10 N exerted…

A: Given: Mass of sled = 50 kg Force, F = 1.95 X 102 N Distance, s = 6.85 m Net work done = 2.6 X 102 J…

Q: A 10N horizontal force is exerted on a 100kg object that slides on a frictionless, horizontal…

A: First method: According to the Newton’s second law, the acceleration of the object is, F=maa=Fm=10…

Q: A massm1​=5.3 kgrests on a frictionless table and connected by a massless string to another…

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Q: A truck of mass 900 kg starts with an initial velocity of 2.00 m/s and travels in a straight line…

A: Mass of the truck,

Q: A force of 85 N is applied horizontally to a 10.0-kg mass on a level surface. The coefficient of…

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Q: es that we have studied about how to compute the work done on a system due to an ex-ternal force.…

A: Work is a form of energy but it always comes into picture when energy is being transferred from one…

Q: Nola page into CrossFit and she is being asked to push a wheel if she applies force of 57N to push…

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Q: A 0.25 slug (3.6 kg) object begins moving at 46 mph (20.6 m/s). A force slows it down to 37 mph…

A: Mass of the object is m = 3.6 kg Initial speed of the object is u = 20.6 m/s Final speed of the…

Q: Two forces are acting on an object of mass 20 kg on frictionless surface as shown in the figure.…

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Q: A 65.0 - kg runner has a speed of 5.20 m/s at one instant duringa long - distance event. (a) What is…

A: (a) Write the expression for kinetic energy

Q: A man pulled a 19.0 kg object 15.0 cm vertically with his teeth. (a) How much work (in J) was done…

A: A a. Given Mass of the object pulled by the man is m=-19kg Object is lifted +15 cm =15×10-2m…

Q: In which of these situations is work being done? A B C D You sit in a chair reading your textbook.…

A: Solution: Given: In which of these situations is work being done? A. You sit in a chair reading your…

Q: (a) What force must be supplied by an elevator cable to produce an acceleration of 0.800 m/s2against…

A: Part-a Given: The acceleration of the elevator a = 0.8 m/s2. The frictional force f = 200 N. The…

Q: A shopper pushes her 25.0 kg cart by a force 2250 N inclined at an angle of 60.0 degrees with the…

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Q: A truck hitched to a trailer exerts a horizontal net force of 312 Newtons. If the trailer moves a…

A: Given that:-Force, F=312 NewtonDisplacement, d=1235mWe know that,Work done , W=F×d    Equation 1

Q: A 20.0-kg crate sits at rest at the bottom of a15.0-m-long ramp that is inclined at above the…

A: FINAL ANSWER:(A)The work one is 987.7N.(B) The time is 3sec.Explanation:

Q: 1. An object of mass 3.00 kg is subject to a force F, that varies with the position as in the figure…

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

Q: A truck hitched to a trailer exerts a horizontal net force of 312 Newtons. If the trailer moves a…

A: Given data:  Force (F) = 312 N Displacement (d) = 1235 m Required: Work done (W)

Q: Is it possible to work in pushing an object without transferring any energy to the object? Describe…

A: Given that It is possible to work in pushing an object without transferring any energy to the object…

Q: While riding on an elevator, a person has twoforces acting on him, a normal force and a gravity…

A: To determine,The magnitude of the normal force.Is the elevator speeding up or slowing…

Q: golfer hit a 40.92 gram golf ball from the fairway giving it an initial velocity of 36.5 m/s.  It…

A:

Q: What is the net work of a system if there is an applied force pushing it at a value of 7887.04N at a…

A: Given; applied force F=7887.04 Ndistance travelled d = 26.62 mcoeff. of kinetic friction μk=0.05mass…

Q: Consider the skateboarder in the Figure. If she has a mass of 55 kg, an initial velocity of 20 m/s,…

A: Mass = 55 kg  Speed at bottom = 20 m/s  Speed at top = 12 m/s  Height = 5 m

Q: As shown in the figure below, a 50-N sled is pushed up a frictionless inclined plane (0=30°) by a…

A: Work gives us a measure of the energy transfer that takes place. It is equivalent to the product of…

Q: Answer this and provide step by step solution. Explain your answer as well. A 3000kg truck is to be…

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Q: When boy is pulling his sister in a wagon, as shown in the future. He exerts a force of F = 43.5 N…

A: Write the given data.Here, F is the distance.

Q: A horizontal force of 150 N is used to push a 47.5-kg packing crate a distance of 5.00 m on a rough…

A: Given:Mass of the packing crate = 47.5 kgForce applied = 150 NDistance moved by the crate = 5 mSpeed…