If the net work done by external forces on a particle is zero, which of the following statements about the particle must be true? (a) Its velocity is zero. (b) Its velocity is decreased. (c) Its velocity is unchanged. (d) Its speed is unchanged. (e) More information is needed.

Q: The force component along the displacement varies with the magnitude of the displacement, as shown…

A: The work done is a scalar quantity, that is it has only a magnitude. The work done by the force on…

Q: 1) A steel ball of mass 5.2 g is fired vertically DOWNWARD from a height hof 18 m with an initial…

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Q: From the figure, the system starts at rest with the spring unextended. Taking m=0.10, when the…

A: Work done by force F on spring is W=12kx2…

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A: Given: Tension in the rope, T = 94N Angle b/w rope and snow, θ = 25o Distance covered, s = 35.0m

Q: 13. Find the amount of work done if an object is pushed horizontally 70 m by a force of 25 N…

A:

Q: man pushes a piano of mass 200 kg up a ramp so that it rises with constant speed a distance of 3.00…

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Q: A balloon of mass M lifts a small rock of mass m from its resting position on the ground to an…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: A body dropped from a height H reaches the ground with a speed of 1:2 VgH. Calculate the work done…

A: Given, height = H             velocity v = 1.2gH           work done W = ?

Q: Suppose a 1400-kg elevator car is lifted a distance 42 m by its cable at a constant speed, assuming…

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Q: A block of mass 2.50kg is pushed 2:20m along a frictionless horizontal table by a constant 16.0 N…

A:

Q: Am = 20.5 kg box is initially at rest, then it slides down a ramp l = 2.64 m long and inclined at an…

A: Note- This is multipart problem so I will solve only first. Given:            Mass of box ,m=20.5 kg…

Q: A single conservative force acts on a 4.90-kg particle within a system due to its interaction with…

A: Given data, Mass of the particle = 4.90 kg Force, Fx=2x+4 Also, x = 0.92 m to x = 6.45 m

Q: A mechanic pushes a 2.50x10²-kg car from rest to a speed of v, doing 3 500 J of work in the process.…

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Q: A 53.2-kg skateboarder starts out with a speed of 2.33 m/s. He does 85.8 J of work on himself by…

A:

Q: A 100N block is being pulled along the surface of a table by a 50.0N force in a direction 35 degrees…

A: Given that,Force on block : FB = 100 (N)Force on table :  FT = 50 (N)Angle : θ = 35°Coefficient of…

Q: The work done by kinetic friction can be. O Positive O Negative O zero Oany of the above

A:

Q: A force ?⃗⃗acts in the x-direction, its magnitude given by ?=ax^3 where =2.0N/m^3. Find the work…

A: Equation of force Where

Q: Problem 2: A 32 kg block is pulled along the ground for a distance of 5.2 m by a 63 N force at an…

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A:

Q: 3. A certain force applied on an object is depicted below. (a) What is the work done by the force…

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Q: A force F= (4i-3ĵ) N acts on a particle that undergoes a displacement A = (2i +j) m. a) ) Find the…

A:

Q: A 4.00 kg block is set into motion up a rough inclined plane with an initial speed of v, = 8.60 m/s.…

A: Given m=4.00kg, d=5.00m, θ=20.0⁰ vi=8.60m/s

Q: The force F = (3î - j) N acts on a particle, causing a displacement of ∆r = (3ỉ + 2j) m. Find the…

A: Given: Force F = (3î - j) N Displacement of ∆r = (3ỉ + 2j) m To determine the work done on the…

Q: Don't use chat gpt It Chatgpt means downvote

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Q: A 980 kg car travels a distance of 6.00 m uphill along a road that makes an angle of 30.0∘ with the…

A: Mass of the car m = 980 kg.Distance is given as s = 6 m.Angle is given as Accelration of the car

Q: A 100.0 g mass falls off the table in the physics lab. You measure the table to be 94.0 cm high.…

A: Given data:  A mass falls off the table  Mass (m) = 100.0 g = 0.100 kg Vertical distance (d) = 94.0…

Q: A 50 kg box is pushed 7 m across the floor at constant velocity by a force F= 500 N directed 53…

A: Simple and intersting problem from basic physics. Please have a good look

Q: You drag your 30 kg suitcase 1200 m thru the Chicago airport at essentially constant velocity 2.0…

A:

Q: A mechanic pushes a 3.00 x 10° kg car from rest to a speed.of v, doing 4650 J of work in the…

A: (a) Work done is equal to change in kinetic energy W=12m∆v2   =12mv2               (object started…

Q: a-) Determine the work a hiker must do on a 15.0-Kg backpack to carry it up a hill of height…

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Q: 35. A gardener pushes a lawnmower through a distance of 20m. If he applies a force of 196N in a…

A: Work done is equal to the product of force and the displacement along the direction of applied…

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Q: A roller coaster is pulled up to a point A, 30.0 m above the ground where it and its screaming…

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Q: T7)A person is dragging a 20kg box along the ground by a rope 30° to the horizontal with à förce 81…

A: 17)     18)  (B) the work done by the net force.

Q: Giventhe diaeram Shown, assuming that the Colfficiet of Kinetic friction ig 8.1 What is the…

A: In the system the acceleration will be in the horizontal direction alone , where the horizontal…

Q: block is pushed along a horizonal surface by a constant force of magnitude 46 N that is acting 30⁰…

A: Work done = force ×displacement