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1)how much work is required to accelerate a 1000kg car from 36km/g to 72km/g over the distance of 1km.Ignore the resistive force. 2)A 1320kg elevator

1)how much work is required to accelerate a 1000kg car from 36km/g to 72km/g over the distance of 1km.Ignore the resistive force.

2)A 1320kg elevator car is lifted by its cable over 25.0m at constant speed assuming friction is negligible.

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