5. What 2 things must be present for work to be done on an object? a. A crane is lifting a car onto a truck bed. Is work being done on the car? Explain your answer. b. That same truck is now traveling with the car on its bed. Is work being done on the car? Explain your answer.

Q: . Review the concept of work. Suppose an object is under the action of a constant force. Make…

A: Have a look  I have uploaded the solution in step 2 and 3

Q: A youngster rides on a skateboard with a speed of 2m/s. After a force acts on the youngster, her…

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Q: A 60.0-kg skateboarder comes over the top of a hill at 5.00 m/s and reaches 10.0 m/s at the bottom.…

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Q: elevator cable breaks when a 925 kg elevator is 22.5 m above the top of a huge spring (k = 8.00×104…

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Q: Sally pulls on the rope shown below with a force of F. The rope forms an angle of 50° with the…

A: Given: θ=50°μ=0.1a = 0.4 m/sm=5 kg

Q: 6. You notice that an object is moving from point A to point B. The object measures a kinetic energy…

A: Given data: The kinetic energy at A is KE=6.75 J. The speed at A is vA=4.25 m/s. The speed at B is…

Q: 1. How much work is done by a person pushing a box with a constant force of 300 N: a. if it is too…

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Q: You lift a 1 kg object from the floor to the top of a 1.5 m high table. 1. What is the force needed…

A: Given: The mass of the object is 1 kg. The dsiplacement of the object is 1.5 m from floor to top of…

Q: Someone drops a 63.5 g rock off of a docked cruise ship, 82.0 m from the water line. A person on a…

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Q: 1. How much work would a 60.0 kg person do in climbing from the surface of the Earth to the top of a…

A: We are given weight of person. We are also given the height of mountain. The work done is the…

Q: 2. An 8.0kg box slides down a surface that is inclined at 53° below the horizontal at a distance of…

A: (A) The work done due to friction is, Wfriction= Ffriction.d Here, " Wfriction is the work done due…

Q: Dot. What is the scalar product ÷ Bifà = x₁ + yĵ and B = yî − xj? A. 2xy B. x² - y² o c. ryi-yry O…

A: Given data:  Two vectors A = x i + y j and B = y i - x j Required: The scalar product of vector A…

Q: A box is pushed across the floor for a distance of 5 meters with an inclined force of 50 Newtons,…

A: Given: The applied force is 50 N. The angle of the force is 20o with the horizontal. The…

Q: 1. A box is moving along a ramp, with a velocity directed up the ramp and an acceleration down the…

A: Part (a): The free body diagram of body is shown as, Gravity force acting on body in the direction…

Q: An elevator cable breaks when a 925 kg elevator is 26.5 m above the top of a huge spring (k =…

A: Given data: The mass of the elevator, m=925 kg. The height of the elevator with respect to the top…

Q: 2. A 59 kg person climbs up the stairs with a height of 5.5 m. a.How much work does the person do?…

A: Given , Mass of person( m) = 59 kg Height climbed by person (h)= 5.5 m

Q: A 25 kg box is pushed up a ramp that makes a 15 degree angle with the horizontal.  The ramp is 15…

A: (a)Work done by ramp is zero when friction is negligible.      (b)Work done by gravity is:-…

Q: Work 2. An 8.0kg box slides down a surface that is inclined at 53° below the horizontal at a…

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Q: 270kg load is lifted 21.0m vertically with an acceleration a=0.170g by a single cable. A. Determine…

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Q: QUESTION 4 The work done by any force can be calculated by using the formula W = F s cos(e) where…

A: The work by any force can be calculated by using the formula is    W=Fscosθ Here F is the applied…

Q: 50 - meter rope with a mass of 30 kg is dangling over the edge of a cliff. Ignoring friction, how…

A: Mass (m) = 30 kgLength of rope (L) = 50 m

Q: solve the following. Provide 1. Given 2. Required 3. Equation 4. Solution 5. Answer

A: Solution:

Q: A 600 N hiker carries a 2.0 kg knapsack up a trail. After 30 minutes, the hiker is 300 m higher than…

A: We  know that when an object is on the height of h from the ground the  Gravitational potential…

Q: You push your physics book 2.40 m along a horizontal tabletop with a horizontal push of 3.00 N while…

A: Given data: Displacement (d) = 2.40 m, horizontal Horizontal puch force (F) = 3.00 N Force of…

Q: A box is being pushed to the right with 112N of force. The box travels a total of 1.5m to the right.…

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Q: DIOO R 13 WILI stance of 6m down th How much work is What is the average

A: 8(A)Given values:- Mass of the block,(m)=5 kg ----(1) Speed of the block,(v)=6 m/sec ----(2) Height…

Q: Roy pulls a box of mass 19.7 kilograms across a horizontal floor by exerting a force of 96.4 newtons…

A: Given Mass of box = m = 19.7 kg Force apply by the Roy = F = 96.4 N angle above the horizontal in…

Q: If the net work done on a particle is zero, which of the following statements must be true? a. The…

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Q: Which of the following statements are TRUE? A. Work is a scalar physical quantity. B. Work can be…

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Q: Part A How much work does an elevator motor do to lift a 1300 kg elevator a height of 200 m ?…

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Q: Sheryl is driving along the highway in an 894 kg car. She initially drives at a velocity of 50 m/s.…

A: Given:-  The mass of the car is m = 894 kg  The initial velocity of the car is vi= 50 m/s  The…

Q: A. Suppose you lift a 15 kg box by a height of 1.0 m. How much work do you do in lifting the box?…

A: (a) The work done in lifting the box is

Q: Which of the following statements are FALSE? A Work is a scalar physical quantity. B. Work can be…

A: Work done is defined as product of force and displacement in direction of applied force . If force…

Q: 1. Draw a situation where a force is doing zero work. Explain why the force is doing no work,…

A: To explain a situation where work done by a force is zero.

Q: Macth each term to its correct description. Column A 1. 2. 3. 4. 5. 6. 7. I Work Joule Watt Machine…

A: The terms in the questions are interrelated to each other and they are very important in physics,…

Q: A 70-kg hiker hikes from an elevation of 1,209 m to an elevation 2,199 m. i. What is the hiker’s…

A: i) As the hiker moves from a lower elevation to a higher one the gravitational potential energy of…

Q: A 5 kg block is set into motion at a rough inclined plane by angle 30 with an initial speed of 8 m/s…

A: Part-a Given: The mass of the block m = 5 kg. The inclination angle of the incline θ = 30o. The…

Q: There is a 23.1 kg box that starts with an initial velocity of 23.5 m/s. The box moves up a hill…

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Q: III. WORK 8. How much work was done by a machine that exerts a 5000 N force to compress a…

A: Given, Force applied by machine, F = 5000 N compress a 10 m long steel bar so it becomes 3 m

Q: 4. In a tug-of-war match, your team is slowly pulling the rope (and the other team) to your side. a.…

A: a. As your team applies a force and there is displacement ( as the other team moves toward your…

Q: Person X pushes twice as hard against a stationary brick wall as person Y. Which one of the…

A: Given: Person X pushes twice as hard against a stationary brick wall as person Y. To Find: Which one…

Q: A hollow block of mass 3 kg is lifted to a height of 10 m in 3 minutes. a. What is the work done in…

A: