1. a force is a push or a pull. newtons third law further defines the meaning of force. explain.\n2. apply…

1. a force is a push or a pull. newtons third law further defines the meaning of force. explain.\n2. apply newtons third law to a falling boulder, identifying the action and reaction forces. if a force is exerted on earth, why doesnt it move? explain.\n3. explain how newtons third law applies to a cannon launching a cannonball. which has the larger acceleration, the cannonball, or the cannon and why?\n4. draw the horizontal forces acting on a horse pulling a cart. draw forces on the cart as well as on the horse. in terms of these forces, explain why the cart moves. explain why the horse moves. why dont action - reaction forces cancel each other?\n5. if you push off the ground with a force of 500 n when you jump upward, how much force pushes earth downward?\n6. two people have a tug - of - war on low - friction ice. one person has 2 times the mass of the other. compared to the lighter person, how many times as fast does the heavier person accelerate?\n7. a 60 - kg person on in - line skates pushes against a wall with a force of 30 n and recoils. what acceleration does that person experience?\n8. a person punches a sheet of paper in midair, and brings it from rest up to a speed of 40 m/s in 0.08 s. what is the force of impact on the paper if the mass of the paper is 0.01 kg?\n9. a karate chop delivers a blow of 2500 n to a board that breaks. the force that acts on the hand during this feat is about how much?\n10. a water bottle rocket has a mass of 0.30 kilograms. on earth, this is a weight of 3.5 n. when the water sprays out the bottom of the bottle rocket, it creates a starting thrust of 8.5 n. calculate the water rockets starting acceleration:\n11. a rifle whose mass is 5 kg is fired. if the bullets mass is 0.05 kg and is made to accelerate at 30m/s², what is the recoil acceleration of the rifle?

1. a force is a push or a pull. newtons third law further defines the meaning of force. explain.\n2. apply newtons third law to a falling boulder, identifying the action and reaction forces. if a force is exerted on earth, why doesnt it move? explain.\n3. explain how newtons third law applies to a cannon launching a cannonball. which has the larger acceleration, the cannonball, or the cannon and why?\n4. draw the horizontal forces acting on a horse pulling a cart. draw forces on the cart as well as on the horse. in terms of these forces, explain why the cart moves. explain why the horse moves. why dont action - reaction forces cancel each other?\n5. if you push off the ground with a force of 500 n when you jump upward, how much force pushes earth downward?\n6. two people have a tug - of - war on low - friction ice. one person has 2 times the mass of the other. compared to the lighter person, how many times as fast does the heavier person accelerate?\n7. a 60 - kg person on in - line skates pushes against a wall with a force of 30 n and recoils. what acceleration does that person experience?\n8. a person punches a sheet of paper in midair, and brings it from rest up to a speed of 40 m/s in 0.08 s. what is the force of impact on the paper if the mass of the paper is 0.01 kg?\n9. a karate chop delivers a blow of 2500 n to a board that breaks. the force that acts on the hand during this feat is about how much?\n10. a water bottle rocket has a mass of 0.30 kilograms. on earth, this is a weight of 3.5 n. when the water sprays out the bottom of the bottle rocket, it creates a starting thrust of 8.5 n. calculate the water rockets starting acceleration:\n11. a rifle whose mass is 5 kg is fired. if the bullets mass is 0.05 kg and is made to accelerate at 30m/s², what is the recoil acceleration of the rifle?

Answer

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