Figure 4.39 Superhero and Trusty Sidekick hang motionless on a rope

Q: A box of mass M is dragged across a rough horizontal surface using force F. Label all forces acting…

A: N is normal force f is frictional force m is mass, g is acceleration due to gravity mg is weight of…

Q: Suppose two children push horizontally, but in exactly opposite directions, on a third child in a…

A: Given, Force exert by first child F1 = 75 N Force exert by second child F2 = 90 N Friction force f =…

Q: A 98-kg box, initially at rest on a frictionless surface, accelerates for 3.2 s over a distance of…

A: Distance covered, s=106 m Time,t=3.2 s Initial velocity, u =0 Then from the formula, s=ut+1/2at² Or,…

Q: A 27 kg boy goes down a straight slide inclined 34◦ above the horizontal. (a) List the forces acting…

A: Given data Mass of boy is m=27 kg Angle of inclination is θ=34o Acceleration due to gravity is…

Q: A 6.00-kg box skids along an inclined plane of 30° as shown in Figure 1. The coefficien of kinetic…

A: Given,The mass of the box, Angle, The friction coefficient, a.

Q: Will the desk move? Explain your reasoning.

A: The above picture shows the free-body diagram of the system. Where N= normal reaction g=…

Q: An 81.0 kg sprinter starts a race with an acceleration of 2.32 m/s2. What is the net external force…

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Q: 6.50-kg pinata is hanging from a tree branch. A wind comes a long and blows the pinata sideways so…

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Q: A 35.0-kg child is sliding down a slide. The slide makes a 55° angle with the horizontal, as shown.…

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Q: A kangaroo with a mass of 60 kg jumps from a top of a building. If the kangaroo experienced a force…

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Q: Draw a free-body diagram of a diver who has entered the water, moved downward, and is acted on by an…

A: A free-body diagram of a diver who has entered the water, moved downward, and is acted on by an…

Q: An object of mass mi= 2.50 kg placed on a frictionless, horizontal table is connected to a string…

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Q: Consider the 65.0 kg ice skater being pushed by two others shown in the figure. Fnt Free-body…

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Q: When landing after a spectacular somersault, a 50.0 kg gymnast decelerates by pushing straight down…

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Q: What net external force is needed to impart an acceleration of 2.00 m/s2 on an object of mass 10.0…

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Q: Consider the skier on a slope shown  Her mass including equipment is 60.0 kg. (a) What is her…

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Q: A woman at an airport is towing her 20.0 kg suitcase with an acceleration of 0.500 m/s2 by pulling…

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Q: A history book is lying on top of a physics book on a desk, as shown below; a free-body diagram is…

A: Consider the history book, the weight of the history book is the force that Earth exerts on it.…

Q: A 28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 79.0 N is…

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Q: A stone is dropped from the cliff. After it has fallen 30 m, what is its speed?

A: The object under free fall is basically falling under the gravitational acceleration of the earth.…

Q: A box (M = 4 kg) is resting on a frictionless horizontal surface. Then there is a 25 Newton force…

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Q: A woman at an airport is towing her 13.0-kg suitcase at constant speed by puling on a strap at an…

A: When a force acts on a body at an angle θ then its Horizontal component of force is given by…

Q: Two objects are connected by a light string that passes over a frictionlesspulley as shown in the…

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Q: 20 kg object experiences the following forces: 10 N North, 20 N South, 20 N East, 10 N West. aw the…

A: Acceleration a = Force / mass

Q: A horizontal force, Fm, is applied to a book that is on a rough horizontal tabletop. As a result the…

A: Given:Horizontal force experienced by the book = FmSince book is accelerating towards its…

Q: A horizontal force of 4770 N is required to give a 1270 kg car an acceleration of 0.175 m/s2 on a…

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Q: Illinois Jones is being pulled from a snake pit with a rope that breaks if the tension in it…

A: maximum tension (T) = 755 N mass (m) = 70 kg h = 3.4 m

Q: A 50 kg block is accelerating down a 40º incline. The coefficient of friction (μ) between the block…

A: Given, Mass, m= 50 kg, angle, θ=400, and coefficient of friction, μ=0.30.

Q: What normal force does a horizontal table exert on a 3.5 kg book that sits at rest? Be sure to draw…

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Q: Consider the 65.0 kg Ice skater being pushed by two others shown In the figure. Frot F2 ........ F,…

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Q: Suppose a 50-kg box is falling at its terminal velocity (i.e., at constant velocity). (a) Write at…

A: Introduction: The free fall is a special type of motion in which the only force acting upon an…

Q: A dockworker loading crates on a ship finds that a 20.0-kgcrate, initially at rest on a horizontal…

A: Let the mass of the crate be denoted by m. Let the coefficient of static friction be denoted by μs…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: