80 wagons 80 Railway vacancy all of same mass 5 into 10 power 3 kg are pulled by an engine with a force of 4 into 10 power 5 Newton's the tension in the coupling between 30th and 31st vegan from the engine is
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"The mass of each wagon = 5 * 10 ^ 3 kg
Force applied on the engine = 4 * 10 ^ 5 N
The total mass of the 80 wagons = 80 * 5 * 10 ^ 3 kg
= 4 * 10 ^ 5 kg
This will convert the tension in the 1N.
"
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