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A rope exerts a constant horizontal force of 250N to pull a 60 Kg crate across the floor. The velocity of the crateis observed to increase from 1 m/s to 3 m/s in a time of 2 secondsunder the influence of this force and the frictional force exertedby the floor on the crate. What is the acceleration of the crate? What is the magnitude of the frictional force acting on thecrate?

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