A girl with a mass of 52kg rides a skateboard with a mass 1.5kg. She uses her foot to apply a force on the ground. While pushing with her foot, she and the skateboard accelerate together at a rate of 2.4m/s². What force did she apply to cause this acceleration?

Q: You are moving boxes into a new apartment. One of the boxes is very heavy, with a mass of 40kg, so…

A: Given data The mass of the box is m = 40 kg. The acceleration of the box is a = 3.2 m/s2. The force…

Q: Your best friend weighs 81.5 kg and is a rugby player. In one of his games, he slides to a stop in a…

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Q: 5. If you reduce the applied force on an object by 4, what do you think will happen to the…

A: Write the expression for Newton’s law.

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Q: A rope is attached to a box with mass 122 kg and Person A is pulling the box to the right on the…

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Q: Kevin works as a janitor, and he is pushing a fully-loaded recycling bin that weighs 557 N across…

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Q: A wagon accelerates 15.0 m/s2 when a force of 650.0 newtons is applied to it. What is the mass of…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: A 67.3 kg person is standing inside an elevator. The elevator is traveling from the 1st floor to the…

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Q: A unicorn running on a beach at 7 m/s changes speed at a constant rate of 3.6 m/s2 over a period of…

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Q: A car has a mass of 1750 kg. If the driver applies the brakes while on a gravel road, the maximum…

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Q: A person pushes a 0.20 kg lunch tray across a table

A: Required : The normal force, N.

Q: on aircraft carriers, catapults are used to accelerate aircraft to flight speeds in a short…

A: The acceleration of the jet is, a=v-ut=70 m/s-0 m/s2.5 s=28 m/s2

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…

Q: Your friend is on a skateboard. His mass is 70 kg. You push him with a force of 200 N. He…

A: Newton's third law of motion states that for every action, there is an equal and opposite reaction.…

Q: A person traveling in a 2,000 kg car at a constant speed of 40.0 m/s applies the brakes, causing a…

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Q: A 2550 kg car traveling to the north is slowed down from an initial velocity of 19.5 m/s by a 5750 N…

A: Using newtons second law  Fnet=ma  And using first equation of motion  V=u+at

Q: Mary applies a force of 78 N to push a box with an acceleration of 0.54 m/s2. When she increases the…

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Q: Two ropes are connected to a 200 kg dinghy. Two brothers each take one rope and pull. When the…

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Q: An object of mass m has these three forces acting on it . F1, F2, and F3 are shown in the figure.…

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Q: A 1200-kg car pushes a 2100-kg truck that has a dead battery to the right. When the driver steps on…

A: By using Newton's 2nd and third law, we get:Fnet=(M+m)a......(1)where,Fnet is the net forceM and m…

Q: (c) What total mass is accelerated to the right by force F32? 10 kg 5 kg 1 7 kg 10 kg 17 kg 2 kg 2 3

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Q: In a performance test, each of two cars takes 8.4 s to accelerate from rest to 28 m/s. Car A has a…

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Q: A man pushes an object to the right and exerts a force which has a horizontal compotent of F = 33 N.…

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Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.51 m/s2. If the river is…

A: Initial velocity = 0 msAcceleration (a) = 1.51 ms2Force (F) = 0.79 N

Q: A person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from rest, this…

A: Given Data:- Mass of the fist is m=0.70 kg Initial velocity of the fist is vi=0 Velocity of the fist…

Q: Two ropes are connected to a 200 kg dinghy. Two brothers each take one rope and pull. When the…

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Q: Some rubber bands pulling on an object cause it to accelerate. If 4 rubber bands cause it to…

A: Given data:  The acceleration due 4 rubber bands a = 1.80 m/s2

Q: You place tomatoes in the pan of a hanging spring scale and find that they weigh 2.9 lb. You measure…

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Q: A rocket is launched vertically from the Earth, and the thrust (pushing force) from the engines is…

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Q: The magnitudes of the three forces acting on the plate are T1 = 90 kN, T2 = 60 kN, and T3 = 40 kN.…

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Q: The figure shows an acceleration-versus-force graph for three objects pulled by rubber bands. The…

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Q: A monkey of mass 20 kg is holding a vertical rope. The rope will not break when a mass of 25 kg is…

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Q: Tom and Jerry are riding two toy cars connected by a rope. Both are travelling at 16.2 km/h when…

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Q: A 45.3 kg steel box is pushed along the concrete ground. It goes from zero to a speed of 23.3 m/s in…

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Q: A rescue helicopter lifts a 57.7-kg person straight up by means of a cable. The person has an upward…

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

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Q: Blocks with masses of 3.0kg, 4.0 kg, and 5.0 kg are lined up in a row on a frictionless table. All…

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Q: A student with a mass of 68 kg gets on a ferris wheel that rotates at a constant speed. When the…

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Q: Big Boris (90kg) skates backward, 1.0 meter ahead of small skater Sofia (45 kg) , holding her hand…

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Q: A dragster and driver together have mass 893.6 kg. The dragster, starting from rest, attains a speed…

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Q: A standard object defined as having a mass of exactly 4.6 kg is given an acceleration of 2.4169 m/s2…

A: Given data:  Mass (m1) = 4.6 kg Acceleration (a1 ) = 2.4169 m/s2 Acceleration of unknown object a2 =…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”