A 1000-lb boulder b is resting on a 200 lb platform A when truck C accelerates t

Question

A 1000-lb boulder b is resting on a 200 lb platform A when truck C accelerates to the left with a constant acceleration. Which of the following settlements are being used? (more than one may be true)

a. The tension in the cord connected to the truck is 200 lb

b. The tension in the cord connected to the truck is 1200 lb.

c. The tension in the cord connected to the truck is greater than 1200 lb

d. The normal force between A and B is 1000 lb

e. The normal force between A and B is 1200 lb

f. none of the above are true

Explanation / Answer

c T-mg=ma

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