Heidi (39 kg) is walking her tiny chihuahua, Chaxi (5.60 kg), on the sidewalk.  To encourage Chaxi along, Heidi pulls forward with a force of 9.55 N. Identify the correct reaction force in response to Heidi’s action force.

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Q: How much force is needed to make a rocket move in constant velocity in a frictionless outer space?…

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Q: An object travels 7.5 m/s toward the west. Under the influence of a constant net force of 5.2 kN,…

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Q: 10. A 430 N force accelerates a cart from 10 m/s to 18 m/s in 5 s. What is the mass of the cart? a.…

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Q: Ahmed is pushing a box with a force 61 N, in the West direction. Salim is pushing the same box with…

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

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Q: Superman and Batman are on a sheet of iče, preparing for battle. Superman has a mass of 94 kg, and…

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Q: When a 500 kg car collides with a 100 kg trailer, the force of the car on the trailer is the same…

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Q: A net force of 81.6 N propels a 4.00-kg model rocket. After being launched from rest, how fast is…

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Q: A 565 kg minecart is travelling at 78 km/hr. What is the average force required to stop the minecart…

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Q: A boy has a mass of 70 kg. He jumps down by 1m and hits ground 0.02 s. If he did not bend his knees,…

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Q: SUV on the smart car is less than the force of the smart car on the SUV. 2. The damage to the SUV is…

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Q: Which of the following is an appropriate unit for force? Note: there may be more than one correct…

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Q: Mr. Blain van and car have broken down. Because he is so muscular, he decides to pull them to the…

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Q: Which of Newton's three laws does the following situation illustrate? A guy pushes on a wall and…

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Q: A 120-kg car starts at rest and accelerates forward, reaching a velocity of 1600 cm/s in 5 s. What…

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Q: Sibusiso ties two blocks together by a short length of very light string that does not stretch. The…

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Q: A 26.84 kg dog jumps on a 86.86 kg bed. As the dog walks around on the bed, what is the average…

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Q: Use interior String Number Mass Attached (kg) Force Exerted (N)  Direction (°) 1       2       3

A: The force exerted on the string 1 is, F1=m1g=170 g1 kg1000 g9.8 m/s2=0.170 kg9.8 m/s2=1.67 N The…

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Q: four penguins that are being playfully pulled along very slippery (frictionless) ice by a…

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Q: In a performance test, each of two cars takes 8.6 s to accelerate from rest to 26 m/s. Car A has a…

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Q: In 2020 the 195kg Icelandic Strongman Hafthor Bjornsson broke the deadlift world record by…

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Q: As shown in the figure, the mass of the block is 214 kg. If Fappi= 59.4 N and Fapp2=38.7 N, find the…

A: Given: m =214kgF1 =59.4 NF2 =38.7 N

Q: Image shows a 5.0 kg block A being pushed with a 3.0 N force. In front of this block is a 10 kg…

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Q: If a box has a weight of 1000 N, its mass is:   Question 14 options:   A)  102 kg   B)  1000 kg…

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Q: A force of 57 N acts to the east and two forces of 45 N and 78 N act to the west. What is the net…

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Q: Tom and his little sister are enjoying an afternoon at the ice rink. They playfully place their…

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Q: Two blocks are in contact on a frictionless horizontal surface. The blocks are accelerated by a…

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Q: Which SI units are combined to describe force? O A. Kilograms and meters B. Kilograms and m/s? C.…

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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?”