Anna needs to move a box of paperback books across the room. If she applies a force of 20 newtons to the box, what is the magnitude of the force exerted by the box on Anna? Done Clear

Q: ii) A 3.5 kg particle moves along an x axis according to x(t) = -12 + 5t2 – 4t³, with x in meters…

A: Given data The position of the particle is given as xt=-12+5t2-4t3. The mass of the particle is…

Q: A woman holds a book by placing it between her hands such that she presses at right angles to the…

A: Static friction,

Q: If an applied force of 10 N directed at an angle of -30 degrees with respect to +x direction acts on…

A: Given: F = 10 N θ = - 30o  with respect to + x axis  mass 'm' is 3 kg We are asked to find the…

Q: a 30 kg crate rests on a horizontal floor, and a 60 kg person is standing on the crate. determine…

A:

Q: Two forces act on an object. One force has a magnitude of 10 N directed north, and the other force…

A: Given data:  Two forces acting on the object F1 = +10 N F2 = -2 N Required: The net force on object

Q: A 300 N block of wood (A) is pressed against the vertical wall by a steel rod that is attached to a…

A: Given that: WA=300 Nμ1=0.131μ2=0.235

Q: A skier with mass of 55 kg (including winter clothes and ski equipment), slides straight down a…

A: Given:mass of skier, m = 55 kg angle of inclination, θ = 50°

Q: A 39.9-kg crate rests on a horizontal floor, and a 70.6-kg person is standing on the crate.…

A: (a)Consider the system of the person, crate and the floor. The forces acting in the vertical…

Q: Question 7 A 81.17 kg crate is on a frictionless surface inclined at an angle of 0 = 28.64°. A…

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Q: Problem 3: While sliding a couch across a floor, Hannah and Andrea exert forces FH and FA on the…

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Q: c) What is the normal force exerted on Luca by the hill? O 1105 N 637 N 468 N 169 N

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Q: In order to properly specify the effect of a force on an object we need: O The magnitude, direction,…

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Q: У - ахis Fs F4 F1 х - ахis F3 F2 Figure (2) for figure (2): The arm in is subjected to five forces…

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Q: 6) A railroad car which has a mass 9216 kg is constrained to move along a horizontal track under the…

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Q: A 32.3-kg crate rests on a horizontal floor, and a 68.8-kg person is standing on the crate.…

A: Given that a 32.3kg crate rests on a horizontal floor and 68.8kg person is standing on the crate…

Q: What is the magnitude and direction of the force given by D at A (FD on A)?

A: Given, qA = 2.5×10-6 CqD = 2.5×10-6 Cr = 2m Distance between A and D = r2+r2 =2r force given by D at…

Q: Two forces act on an object; a 6 N force in the positive y-direction and an 8 N force in the…

A: The first force acting on an object is, The second force acting on an object is, The net force on…

Q: A 2.0 kg particle moves along an x axis, being propelled by a wariable force directed along that…

A: We are given mass of particle. We are also given position as function of time. We first find…

Q: At what position (other than infinitely remote ones) can the 49.0 kg object be placed so as to…

A: For the net gravitational forces on the mass to be equal,

Q: Clase1 ICase 2 Case 3

A: The normal force is the force which always acts perpendicular to the surface.

Q: An 8 kg block rests on a horizontal surface whose coefficients of friction are: s = 0.4 and k =…

A:

Q: Three forces act concurrrently on a body. Force A has a magnitude of 200 N and points 50o N of W;…

A: We have 3 forces given by A=200 N (50o North of West), B=100 N (30o East of North) and C=300 N (40o…

Q: You hang a book bag on a spring scale and place the bag on a platform scale so that the platform…

A: Answer:   The magnitude of the force that exerts on the bag is given as:

Q: A car traveling at 29.6 m/shits a bridge abutment. A passenger in the car, who has a mass of 57.0…

A: From the equation of motion,

Q: Consider a pair of forces, one having a magnitude of 20 N and the other a magnitude of 12 N. What…

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Q: 5 kg block is placed on an inclined plane of angle 30 degrees and pushed up the plane with a…

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Q: Any system of nonconcurrent coplanar forces can be replaced by a that is equivalent to the given…

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Q: A block is lifted by a plane inclined 20 ° with respect to the horizontal by means of a force F that…

A: Let F denotes the total applied force, F′x denotes the component of the force that is parallel to…

Q: A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at…

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Q: Problem 1: A 64 kg toy car is affected by five forces at the same time: 80 N south, 15 N east, 35 N…

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Q: a 1500kg car accelerates uniformly from 30.0 km//hr to 80.0 km/hr in 12.0 sec. what was the net…

A: Given data :  Initial velocity of car = 30 km/hour = 8.33 m/s  Final velocity of car = 80 km/hour =…

Q: Given in the figure are two blocks A and B of weight 20 N and 100 N, respectively. These are being…

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Q: parts

A: Given: Force exerted = 440 N

Q: A women holds a book by placing it placing it between her hands such that she that she presses at…

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Q: Nine cubes are stacked one on top of the other. If every cube has a mass of m kg, what is the…

A: ( a ) weight of one cube = mg Weight of three cubes = 4mg Thus, the force exerted on the 5th cube by…

Q: A 1090 kg boat is traveling at 92 km/h when its engine is shut off. The magnitude of the frictional…

A: Given, mass of the boat, m=1090 Kg the initial speed of the boat, u=92 Km/h the final speed of the…

Q: THREE 5-KG PACKAGES A, B, AND C ARE PLACED ON A CONVEYOR BELT THAT IS AT REST. BETWEEN THE BELT AND…

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Q: A

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Q: Suppose one's hand exerts a force of 15 N upward on a book weighing 12 N. The reaction to the force…

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Q: A 2.5 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 6.2 N…

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Q: The glue on a piece of tape can exert forces. Can these forces be a type of simple friction?…

A: The glue on a piece of tape can exert forces on the surface of the tape. The friction force is a…