A car traveling at 50 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 78 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's upper torso, which has a mass of 43 kg?

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A: According to Newton's second law F =ma

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A: Draw the free-body diagram of the block.

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Q: Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades…

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Q: Three boxes are lined up so that they are touching each other on a nearly frictionless plane. Box A…

A: Given :-mass of box A mA=19.0 kgmass of box B mB=30.5 kgmass oof box C mC=53.0 kgmagnitude of…

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A: The objective of the question is to find out the force exerted by the floor on the man. This can be…

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: is at rest on a horizontal floor.  A 22 kg child sits on top of the box.  A person pushes the box…

A: Net force = ma

Q: A 1 000-kg car is pulling a 300-kg trailer. Together, the car and trailer have an acceleration of…

A: Hey, since there are multiple subparts question posted, we will answer first three questions. If you…

Q: The average speed of a nitrogen molecule in air is about 6.7 x 10^2 m/s, and its mass is 4.68 x…

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Q: When a 0.058 kg baseball is hit by a bat, it accelerates to a speed of 45 m/s coming from rest. The…

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Q: Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades…

A: Concept: Apply Newton's second law. The amount of force acting on the man by the woman in the East…

Q: Sasha is dragging some hockey equipment across the ice rink. The equipment (object 1) has a mass of…

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Q: he air exerts a forward force of 10 N on the propeller of a 0.40 kg model airplane. If the plane…

A: To determine,the magnitude of the resistive force(FR )exerted by the air on the airplane.given,Force…

Q: A 39 kg girl and a 7.7 kg sled are on the frictionless ice of a frozen lake, 10 m apart but…

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Q: Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades…

A: Given data,Mass of the man Mass of the woman Push force due east.

Q: A 821-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

A: Given: The mass of the car is 821 kg. The initial speed of the car is 0 m/s. The final speed of the…

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: A car of mass 1.2  103 kg is traveling east at a speed of 24 m/s along a horizontal roadway. When…

A: Given: Mass of car is M=1.2×103kg The initial speed of the car is Vinitial=24m/s brakes are applied…

Q: Two teams of nine members each engage in tug-of war. Each of the first team's members has an average…

A: Given The average force on the right is F1=1450 N. The average force on the left is F2=1635 N. The…

Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A: Given data:  Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 45.3 m/s Time interval (Δt) = 6.11…

Q: wo people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an ice-covered…

A: Given data- Heavier person MH=100 kg Lighter person ML=50 kg The heavier person pushes on the…

Q: A 80.0 kg diver falls from rest into a swimming pool from a height of 5.50 m. It takes 1.84 s for…

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Q: Two horizontal forces,  P and Q, are acting on a block that is placed on a table. We know that  P…

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Q: A block with a mass of m = 32 kg rests on a frictionless surface and is subject to two forces acting…

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Q: A car of mass 1.15 * 103 kg is stalled on a horizontal road. You and your friends give the car a…

A: Given that:m=1.15×103 kgF=8×102 Nu=0 m/sv=1.4 m/ss=5 m

Q: Newton's second law is given by F= dp/dt. If the force is always perpendicular to the velocity, show…

A: Newton's second law of motion states that the net force acting on an object is directly proportional…

Q: block with a mass of m = 13 kg rests on a frictionless surface and is subject to two forces acting…

A: Free Body Diagram:     a) Net force in x-direction     Fnetx= F2cosθ-F1            =…

Q: Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He…

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Q: An object has a velocity (4.04 m/s)i + (-4.96 m/s)j + (4.44 m/s)k. In a time of 3.84 s its velocity…

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Q: A bullet with a mass of 20.0 grams is fired from a gun with a 10.0 cm barrel at a velocity of 300.0…

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Q: net force of 20 N is acting on a falling object. The object experiences air resistance of 6.0 N. If…

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Q: Jane, who has a mass of 81.0 kg, is riding at 15.0 m/s in his new car when she must suddenly slam on…

A: Mass m= 81 kg Initial speed = 15 m/s Final speed = 0 m/s Time = 0.5 s Acceleration = (final speed -…

Q: A stack of four textbooks sits on top of a desk. The mass of the bottom book is 5.0 kg, on top of…

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Q: A 945-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

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Q: A block with a mass of m = 22 kg rests on a frictionless surface and is subject to two forces acting…

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Q: A block with a mass of m = 46 kg rests on a frictionless surface and is subject to two forces acting…

A: We are going to apply the vector components rule here. That will enable us to solve the problem…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.