Homework Answers
Mass of caboose = m3 = 1000 kg
Mass of middle car = m2 = 2000 kg
Mass of engine car = m1 = 2000 kg
Acceleration of engine = a = 5 m / s2
The engine is pulling the cars in right forward direction. Hence, the tension would be in the left direction.
Tension between middle car and engine car
T = (m2 + m3) * a = 3000 * 5 = 15000 N
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