Alex is asked to move two boxes of books in contact with each other and resting on a frictionless floor. He decides to move them at the same time by pushing on box A with a horizontal pushing force 9.3 N. Here box A has a mass m 12.1 kg and box has a mass m - 7.0 kg. The contact force between the two boxes is F and N denotes the normal force. m m₂ (a) What is the acceleration (in m/s2) of the two boxes? m/s2 (b) What is the force (in N) exerted on ma by m? N (c) If Alex were to push from the other side on the 7.0 kg box, how would your answer to part (b) change? N p

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Chapter1: Units, Trigonometry. And Vectors
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Alex is asked to move two boxes of books in contact with each other and resting on a frictionless floor. He decides to move them at the same time by pushing on box A with a horizontal pushing force F. =
9.3 N. Here box A has a mass m = 12.1 kg and box B has a mass
7.0 kg. The contact force between the two boxes is F_and N denotes the normal force.
(a) What is the acceleration (in m/s) of the two boxes?
m/s²
(b) What is the force (in N) exerted on m by m?
N
Qurd
(c) If Alex were to push from the other side on the 7.0 kg box, how would your answer to part (b) change?
N
Transcribed Image Text:Alex is asked to move two boxes of books in contact with each other and resting on a frictionless floor. He decides to move them at the same time by pushing on box A with a horizontal pushing force F. = 9.3 N. Here box A has a mass m = 12.1 kg and box B has a mass 7.0 kg. The contact force between the two boxes is F_and N denotes the normal force. (a) What is the acceleration (in m/s) of the two boxes? m/s² (b) What is the force (in N) exerted on m by m? N Qurd (c) If Alex were to push from the other side on the 7.0 kg box, how would your answer to part (b) change? N
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