Which is an example of zero work? A. A man pushing box B. A ball undergoing free fall C. A box sliding down D. A boy pushing a cart back and forth

Q: 900 N box is pushed up an inclined plane that is 6.0 m long. It requires 3900 J of work to get the…

A: kinetic energy at bottom= kinetic energy at top=0 as as bottom and top the speed is zero. potential…

Q: A car with a mass of 1290 kilograms is being driven at 17.9 meters per second when it runs into a…

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Q: A person pushes horizontally on a heavy box and slides it across the level floor at constant…

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Q: A force with a magnitude of 25 N and directed at an angle of 37° above the horizontal is used to…

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Q: A worker pushes a sled with a force of 50 N over a level distance of 10.0 m. If a frictional force…

A: Concept of Net work done on an object moving on frictional surface: A frictional surface causes an…

Q: A person exerts a horizontal force of 500 N on a box, which also experiences a friction force of…

A: Given data: Force applied by person on the box = 500 N towards the right. Friction force on the box…

Q: 4. A 250-N force accelerates a 25.0-kg crate from rest along a horizontal frictionless surface for a…

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Q: worker applies a force of 190 N, directed 22° below the horizontal. As the crate moves 3.3 m, How…

A: Given :-  F = 190 N  S = 3.3 m m = 52 kg  directed 22° below the horizontal

Q: You push very hard on a heavy desk, trying to move it. You do work on the desk: Select one: a.…

A: In this question we are pushing a heavy desk very hard and we have to determine when work is done on…

Q: A worker pushes a wheelbarrow 5.0 m along a level surface, exerting a constant horizontal force of…

A: Given:  force applied by the worker (F) = 50 N  distance travelled by the wheelbarrow (S)  = 5 m the…

Q: A child lifts a box up from the floor. The child then carries the box with constant speed to the…

A: Given:  A box is pushed with a constant speed.

Q: A particle experiences a variable force F= (2+2x+ x^2)N that acts in the x direction. The work done…

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Q: Two men, Joel and Jerry, push against a wall. Jerry stops after 10 min, while Joel is able to push…

A: time for which the jerry pushes against the wall = 10 min tiem for which the joel pushes against the…

Q: A man pushes an 80-N crate a distance of 5.0 m upward along a frictionless slope that makes an angle…

A: Step 1Let the force with which man pushes a crate is given as F and the distance is given as d. It…

Q: A metalsmith at a foundry drags a hunk of steel across the horizontal foundry floor by pulling on it…

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Q: An object whose mass is 2.00 kg is lifted upward a distance of 3.55 m against the pull of gravity on…

A: Given: The mass of the object is 2 kg. The height of the object is 3.55 m. The acceleration due to…

Q: A boy pushes on a parked car with a force of 200N. The car doesn’t move. How much work does the boy…

A: The work done by a force can be defined as the product of the displacement of the particle and the…

Q: A grocery cart with a mass of 10 kg is being pushed at constant speed up a 25° ramp by a force Fp…

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Q: Which of these is an example of no work being done?   a. a child pushes a toy car across a flat…

A: Work done is the energy transferred when a force is displaced by a distance.

Q: 2. A 1050 J of work is done by a post-person when pushing a parcel with a mass of 33.2 kg with a…

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Q: 4. A boy carries a load of 500 N to a distance of 100 m. The work done by him is? a. 5 N b. 50,000…

A: Question 4 :- Force F = 500 N Displacement d = 100 m Angle between force  (acting vertically…

Q: A 90 kg refrigerator rests on the rough floor. How much work is needed to move it at constant speed…

A: Given that, Mass of a refrigerator, m = 90 kg Distance, d = 4 m The force of friction, f = 180 N We…

Q: A force, in an angle of 32º, is applied to a 28-kg object which caused it to accelerate at 12 m/s2.…

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Q: A man pushes an 80-N crate up a frictionless slope that makes an angle of 30° with the horizontal.…

A: Given: The weight of the object is 80 N. The slope is 30o with horizontal. The displacement of the…

Q: A child pulls a wagon 5.0 m using a force of 25 N at an angle 15 degrees above horizontal. The force…

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Q: As a simple pendulum swings back and forth, the forces acting on the suspended object are the…

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Q: Which requires more work: lifting a 50.0 kg crate a vertical distance of 2.0 meters or lifting a…

A: Given: M1=50kg M2=25kg h1=2m h2=4m Now, Work was done to lift 50 kg crate (2m). Work was done to…

Q: A box of mass 10 kg initially was at rest on a frictionless horizontal table. After applying a force…

A: Given that, The mass of a box, m = 10 kg The initial speed of the box, u = 0 (at rest) After…

Q: Assume that an object is being pulled along the ground by a 75 N force directed 28° above the…

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Q: Which of the following statements represent example of situation showing work? Select one: a. A…

A: ( correct option is b) To tell, Which statements represents examples of situation showing work. We…