Calculate the final speed of the ball right

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1). Calculate the power in watts exerted by a weightlifter when she lifts a 50 Kg barbell a vertical distance of 1.0 meter in 1.5 seconds.

2) A 4 kg ball is raised a vertical distance of 2 meters. Using the conservation of energy principle calculate the final speed of the ball right before it hits the ground.

Reference no: EM13256463

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