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A trolley of mass 300 kg carrying sandba...

A trolley of mass 300 kg carrying sandbag of 25 kg is moving uniformly with a speed of 27 km/h on a frictionless track. After a while, sand starts leaking out of a hole on the floor of the trolley at the rate of `0.05kg s^(-1)`. What is the speed of the trolley after the entire sand bag is empty?

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`=27 kmh^(-1)` (no change in speed)
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