Question number 32 ATHINK AND RANK (ANALYSIS)31. A van exerts a force on trailers of different masses m.Compared with the force exerted on each trailer, rank themagnitudes of the forces each trailer exerts on the van.(Or are all pairs of forces equal in magnitude?)1:24m= 1000 kg v= 20 m/sCPage 2BMm-1500 kg v = 20 m/sm-1800 kg v 15 m/s32. Each of these boxes is pulled by the same force F to theleft. All boxes have the same mass and slide on a friction-free surface. Rank the following from greatest to least:THINK AND EXPLAIN (SYNTHESIS)34. For each of the following interactions, identify actionand reaction forces: (a) A hammer hits a nail. (b) Earthgravity pulls down on a book. (c) A helicopter bladepushes air downward.35. The photo shows Steve Hewitt and daughter Gretchen.Is Gretchen touching her dad, or is her dad touching her?Explain.36. When you rub your hands together, can you push harderon one hand than the other?37. You hold an apple over your head. (a) Identify all the forcesacting on the apple and their reaction forces. (b) Whenyou drop the apple, identify all the forces acting on it as itfalls and the corresponding reaction forces. Ignore air drag.38. Identify the action-reaction pairs of forces for the follow-ing situations: (a) You step off a curb. (b) You pat yourtutor on the back. (c) A wave hits a rocky shore.39. Consider a baseball player batting a ball. Identify theaction-reaction pairs (a) when the ball is being hit and(b) while the ball is in flight.F¬a. The accelerations of the boxesABC.5GºCHAPTER 5 REVIEWF-ADoneNb. The tensions in the ropes connected to the singleboxes to the right in B and in C33. Three identical pucks, A, B, and C, are sliding across iccat the given speeds. The forces of air and ice friction arenegligible.a. Rank the pucks by the force needed to keep themmoving, from greatest to least.Bb. Rank the pucks by the force needed to stop them inthe same time interval, from greatest to least.2 m/s4 m/s6 m/s87C44. When the athlete holds the barbelloverhead, the reaction force is theweight of the barbell on his hand.How does this force vary for the casein which the barbell is acceleratedupward? Downward?40. What physics is involved for a passenger feeling pusheebackward into the seat of an airplane when it acceleratalong the runway during takeoff?41. If you drop a rubber ball on the floor, it bounces backup. What force acts on the ball to provide the bounce42. Within a book on a table, there are billions of forces pusand pulling on all the molecules. Why is it that these fornever by chance add up to a net force in one direction,ing the book to accelerate "spontaneously" across the ta43. If you exert a horizontal force of 200 N to slide a craacross a factory floor at constant velocity, how muchfriction is exerted by the floor on the crate? Is the feof friction equal and oppositely directed to your 20push? If the force of friction isn't the reaction forceyour push, what is?45. Consider the two forces acting on theperson who stands still-namely, thedownward pull of gravity and the upwardsupport of the floor. Are these forces equaland opposite? Do they form an action-reaction pair? Why or why not?46. Why can you exert greater force on thepedals of a bicycle if you pull up on the handl€

Name: Question number 32 ATHINK AND RANK (ANALYSIS)31. A van exerts a force
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Description: Question number 32 ATHINK AND RANK (ANALYSIS)31. A van exerts a force on trailers of different masses m.Compared with the force exerted on each trailer, rank themagnitudes of the forces each trailer exerts on the van.(Or are all pairs of forces equal

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Question number 32 ATHINK AND RANK (ANALYSIS)31. A van exerts a force on trailers of different masses m.Compared with the force exerted on each trailer, rank themagnitudes of the forces each trailer exerts on the van.(Or are all pairs of forces equal in magnitude?)1:24m= 1000 kg v= 20 m/sCPage 2BMm-1500 kg v = 20 m/sm-1800 kg v 15 m/s32. Each of these boxes is pulled by the same force F to theleft. All boxes have the same mass and slide on a friction-free surface. Rank the following from greatest to least:THINK AND EXPLAIN (SYNTHESIS)34. For each of the following interactions, identify actionand reaction forces: (a) A hammer hits a nail. (b) Earthgravity pulls down on a book. (c) A helicopter bladepushes air downward.35. The photo shows Steve Hewitt and daughter Gretchen.Is Gretchen touching her dad, or is her dad touching her?Explain.36. When you rub your hands together, can you push harderon one hand than the other?37. You hold an apple over your head. (a) Identify all the forcesacting on the apple and their reaction forces. (b) Whenyou drop the apple, identify all the forces acting on it as itfalls and the corresponding reaction forces. Ignore air drag.38. Identify the action-reaction pairs of forces for the follow-ing situations: (a) You step off a curb. (b) You pat yourtutor on the back. (c) A wave hits a rocky shore.39. Consider a baseball player batting a ball. Identify theaction-reaction pairs (a) when the ball is being hit and(b) while the ball is in flight.F¬a. The accelerations of the boxesABC.5GºCHAPTER 5 REVIEWF-ADoneNb. The tensions in the ropes connected to the singleboxes to the right in B and in C33. Three identical pucks, A, B, and C, are sliding across iccat the given speeds. The forces of air and ice friction arenegligible.a. Rank the pucks by the force needed to keep themmoving, from greatest to least.Bb. Rank the pucks by the force needed to stop them inthe same time interval, from greatest to least.2 m/s4 m/s6 m/s87C44. When the athlete holds the barbelloverhead, the reaction force is theweight of the barbell on his hand.How does this force vary for the casein which the barbell is acceleratedupward? Downward?40. What physics is involved for a passenger feeling pusheebackward into the seat of an airplane when it acceleratalong the runway during takeoff?41. If you drop a rubber ball on the floor, it bounces backup. What force acts on the ball to provide the bounce42. Within a book on a table, there are billions of forces pusand pulling on all the molecules. Why is it that these fornever by chance add up to a net force in one direction,ing the book to accelerate &#34;spontaneously&#34; across the ta43. If you exert a horizontal force of 200 N to slide a craacross a factory floor at constant velocity, how muchfriction is exerted by the floor on the crate? Is the feof friction equal and oppositely directed to your 20push? If the force of friction isn't the reaction forceyour push, what is?45. Consider the two forces acting on theperson who stands still-namely, thedownward pull of gravity and the upwardsupport of the floor. Are these forces equaland opposite? Do they form an action-reaction pair? Why or why not?46. Why can you exert greater force on thepedals of a bicycle if you pull up on the handl€

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