Only if a force on a particle is conservative: O it does no work when the particle moves exactly once around any closed path the work it does equal the change in the kinetic energy of the particle O it obey Newton's second law it obey Newton's third law

Q: A force F = 5i - 3j is applied on a box that experiences a displacement Δr = 10î. a) Find the work…

A: We will use formula of work done that is dot product of force and displacement.W= F.∆rWe know,…

Q: 79. ssm A water-skier, moving at a speed of 9.30 m/s, is being pulled by a tow rope that makes an…

A: Given data: The water-skier’s velocity is: v = 9.30 m/s The force exerted by the rope on the…

Q: A 18 kg crate is being pushed 7.6 m across a level floor by a 92 N horizontal force. The μk between…

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

Q: What effect do external forces like an applied force, friction force, or drag force have? O They…

A: Any external force acting on the system acts in such a way that the total mechanical energy of the…

Q: Alice stands in an elevator that moves up with constant velocity. What can be said about the work…

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Q: A 2 kg block is pulled 4.0 m along the horizontal ground by a force of 25 N that makes an angle of =…

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Q: The specialty of an athlete on the women's track team is the pole vault. She has a mass of 44 kg and…

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Q: The specialty of an athlete on the women's track team is the pole vault. She has a mass of 60 kg and…

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Q: I. A boy uses a rope to pull a loaded sled of mass m = 125 kg along a horizontal surface of snow at…

A: Variables and FormulasMass of the sled, m=125kgCoefficient of kinetic friction, μk=0.10Angle of…

Q: I am riding an elevator that has a constant upward acceleration while the elevator travels upwards a…

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Q: An elevator in Goodtaste Baguio of 8 persons- capacity with a mass of 1750 kg plus unknown total…

A: Given information: The mass of the elevator (m) = 1750 kg The number of persons (n) = 8 The height…

Q: The specialty of an athlete on the women's track team is the pole vault. She has a mass of 48 kg and…

A: Total mechanical energy (Kinetic energy + Potential energy) of a system remains constant if the…

Q: The average force exerted

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Q: A child throws a stone upwards. While the stone is moving upwards the gravitational force does…

A: The work done by a force on moving a body by a certain distance is given by W = F.s = F×s×cosθ,…

Q: A 1350-kg car is traveling with an initial speed of 25.0 m/s. Determine the car's speed after –2.20…

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Q: An electric elevator with a motor at the top has a cable weighing 4.5 pounds per foot. When the car…

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Q: Do the following situations result in positive work, negative work, or zero work? Force is…

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Q: A 32-kg block is pulled along the ground for a distance of 4.9 m by a 57 N force at an angle of 21…

A: a) work done by applied force  = 57×4.9×Cos21° = 260.75 J

Q: The work done by a constant force applied to a block while it is moving is calculated and the result…

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Q: (2i-si+s4) 2i – 5j + 5km %D A 13 N force with a fixed orientation does work on a particle as the…

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Q: The work done by gravity during the descent of a projectile is: a) negative b) zero c) positive d)…

A: Let an object of mass m be in descent so force applied by gravity is F=mg. Direction of F here is…

Q: The (non-conservative) force propelling a 1.20 × 103-kg car up a mountain road does 7.90 x 106 J of…

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Q: A constant force F acts on an object as it goes through a displacement of s. Which of the following…

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Q: 3) A particle of mass m moves in the xy plane under the action of force F = (4i -2ĵ)N. Calculate the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: When a body is lifted, the work done by the gravitational force is positive. a) True b) False

A: False

Q: Three cars (car L, car M, and car N) are moving with the same speed and slam on their brakes. The…

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