At an airport, luggage is unloaded from a plane into the three cars of a luggage

Question

At an airport, luggage is unloaded from a plane into the three cars of a luggage carrier, as the drawing shows. The acceleration of the carrier is 0.154 m/s2, and friction is negligible. The coupling bars have negligible mass. If 41.6 kg of luggage were removed from car 2 and placed in car 1, by how much would the tension change in coupling bars (a) A, (b) B, and (c) C? If instead 41.6 kg of luggage were removed from car 2 and placed in car 3, by how much would the tension change in coupling bars (d) A, (e) B, and (f) C? In each case, give your answer as a positive number if the tension increases, and negative if it decreases.

Explanation / Answer

We know that, F=ma

Tension = Force
a= 0.154 m/s^2

a. No change
b. Decreases 41.6 kg * 0.154 m/sec^2 = -6.41 N
c. No change
d. No change
e. No change
f. Increases 41.6 kg * 0.154 m/sec^2 = 6.41 N

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