Two boxes sit side-by-side on a smooth horizontal surface. The lighter box has a

Question

Two boxes sit side-by-side on a smooth horizontal surface. The lighter box has a mass of 5.07 kg, the heavier box has a mass of 7.47 kg.

(a) Find the contact force between these boxes when a horizontal force of 6.5 N is applied to the light box. (N)


(b) If the 6.5 N force is applied to the heavy box instead, is the contact force between the boxes the same as, greater than, or less than the contact force in part (a)?


(c) Verify your answer to part (b) by calculating the contact force in this case. ( N)

Explanation / Answer

a.) for 5.07 kg box,

6.5 - C = 5.07a where a = accel.

for 7.47 k box

C= 7.47a

C = 3.872 N

b.) 6.5 -C = 7.47a

C = 5.07a

C = 2.628 N

so its less

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