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 0.196 m/s2, and friction is negligible. The coupling bars have negligible mass.
If 32.5 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 32.5 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

This is a F=ma problem

Tension = Force
a= .196 m/sec^2

First Question:
a. No change - It still pulls the same amount of mass
b. Less 32.5 kg * .196 m/sec^2 =6.37 N
c. No change - It still pulls the same amount of mass

Second Question
a. No change - It still pulls the same amount of mass
b. No change - It still pulls the same amount of mass
c. Increase 32.5 kg * .196 m/sec^2 =6.37 N

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