Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N to the left, the second a force of 90.0 N to the right, friction has a magnitude of 12.0 N, and the mass of the third child plus wagon is 23.0 kg. Draw a free-body diagram, including all forces acting on the third child. Calculate the child’s acceleration. What would the acceleration be if friction were 15.0 N?

Q: -8. A block that weighs 60 N is initially at rest on a horizontal surface. A horizontal force F, of…

A: Solution:   Given Values, Weight of the block(W)=60 N Horizontal force(F1)=22 N Vertical force=F2…

Q: 2. Suppose Andrea and Beatrice push horizontally, but in exactly opposite directions, on a wagon…

A: Given:- The mass of the food and drink is m = 27 kg  Andrea exerts a force FA= 85 N  Beatrice exerts…

Q: If you have an object moving along a rough surface (one in which kinetic friction is a significant…

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Q: The figure below shows Superhero hanging motionless from a rope, with Trusty Sidekick hanging below…

A: mass of super hero = Ms=85 kg mass of trusty sidekick= Mt = 54 kg

Q: toy of mass 1.5 kg. The boy pulls with a force of 6.0 N [W] while the girl pulls with a force of 8.0…

A: GivenMass of toy, m=1.5 kgBoy pull with a force, Fb=6 N (W)Girl Pull with force, FG=8 N…

Q: 1. A box of mass m slides down on a ramp inclined 35° with respect to the ground. The coefficient of…

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Q: A mosquito collides head on with the windscreen of a car. Which of the following statements are…

A: From Newton's second law we know  Every action has an equal and opposite reaction.  So, when the…

Q: Two students push a heavy 165 kg catapult across a bumpy parking lot.  Lenny pushes with 260 N…

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Q: Problem 1: A horizontal force F is applied to m₁. Take m₁ = 2.0 kg, m₂ = 3.0 kg, m3 = 4.0 kg, and F…

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Q: 2. Block 1 of mass m₁ is in contact with block Push 2 of mass m₂ on a horizontal frictionless…

A: Solution:Both blocks will move with the same acceleration, aThen, from 2nd law of motion we…

Q: Two boxes are placed on a horizontal frictionless surface, as shown above. Box A has a mass of 10 kg…

A: Free body digram We know that Force is  F=ma

Q: 4. A custodian pushes a crate to the right across the gym floor at a constant speed. Select the…

A: It is required to select the correct free body diagram from the given two.

Q: 5. Figure shows a block with mass of 3.0 kg on a horizontal table. It is connected by a cord passing…

A: Given values:m1 = 3.0 kgm2 = 5.0 kgCoefficient of kinetic friction = 0.6

Q: 4. Two blocks, mi 22.5 kg and m₂ = 10.5 kg, are connected by a string. Block 1 rests on a table and…

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Q: 3. An 8 kg bucket is lowered by a rope in which there is 63 N of tension. What is the acceleration…

A: Weight(mg) pull downward while Tension(T) will be upward. Net force will be (mg-T) and we calculate…

Q: 1. You are lowering a bucket of water (m 3.35 kg) into a well. You are holding onto a rope that is…

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Q: A person places a book on the roof of a car and drives off without remembering to remove it. As the…

A: In this question we are given that a book is placed on the roof of a car and we have find the forces…

Q: 9. Two blocks (A and B) are at rest on a horizontal floor. Block A has a weight of 100 N, and block…

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Q: -) Figure 1 show a 35 kg box is move on a frictionless surface with the force of 65 N at an angle of…

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Q: A 3.00-kg object B is connected with a string to a 5.00-kg object A, which is connected with a…

A: Given: The masses of objects, mA=5.0 kg.mB=3.0 kg.mC=9.0 kg.

Q: Robin is pulling Batman from a tank full of sharks with a rope that breaks if the tension in it…

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Q: M1 (3.0 kg) is connected to M2 (2.0)) with a rigid light string. Both sits on a leveled ground of…

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Q: 15. Two boxes are placed on a horizontal frictionless surface, as shown above. Box A has a mass of…

A: Acceleration a =f net / m total (for whole system ) 1=54/10+16 =2.07 m/s2

Q: 7. A stonemason drags a marble block across a floor by pulling on a rope attached to the block. The…

A: All questions are different, so according to guidelines only question 7 is solved here.   When a…

Q: 1. Block A rests on top of block B as shown in below. The table is frictionless but there is…

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Q: 9) An object of mass 10 kg is pulled up a rough (friction) inclined plane by a rope. The inclined…

A: mass of object (m) = 10 kg Tension (T) in the rope = 100 N θ = 25oacceleration (a) = 3 ms2

Q: A) Draw a sketch of the lamp. B) Draw a free-body diagram of the lamp. C) Determine the magnitude…

A: Newton's Second law of motion According to Newton's Second Law of motion, the rate of change of…

Q: Problem 5: A nurse pushes a cart by exerting a force on the handle at a downward angle of 35° below…

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Q: (i) Newton's Second Law for m, in terms of weights of the blocks, m₁g, and m₂g, or their components…

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Q: 2. Two blocks are connected by strings and hung from the ceiling as shown. Tension T¡ is 73 N and…

A: Given: Tension in upper rope T1=73 N Tension in lower rope T2=59 N

Q: 2. A painter uses a platform/rope/pulley system to raise/lower himself along the side of a house.…

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Q: If the force acting on an object triples, what happens to the acceleration of the object? (the mass…

A: Given, The force acting on object tripled. We know that acceleration = Force/mass

Q: # 2. A box of mass m = 10 (kg) is pulled with constant speed by a string on a 35° inclined plane…

A: Given: The mass of the block is 10 kg. The coefficient of the friction is 0.3. Introduction: The…

Q: That same 80 kg object is sliding across the table because you are applying a force of +300 N. If…

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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?”