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A weightlifter raises a 90-kg barbell from the floor to a height of 2.2 m in 0.6 s What was his average power output during the lift?
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∙ 14y ago
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∙ 14y ago
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A weightlifter raises a 90 kg barbell from the floor to a height of 2.2 m in 0.6 s What was his average power output during the lift?
power = force x velocity velocity = distance/time = 68 x 11/3 = 2.2/0.6 = 249.3 Watts = 11/3
Calculate the work done in lifting a 500-N barbell 2.2m above the floor what is the potential energy of the barbell when it is lifted to this height?
Work = Force x distance So since the barbell is 500N and the barbell travels 2.2 meters it becomes 500N x 2.2m = 1100 joules (N x m)
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A weightlifter raises a 90 kg barbell from the floor to a height of 2.2 m in 0.6 s What was his average power output during the lift?
power = force x velocity velocity = distance/time = 68 x 11/3 = 2.2/0.6 = 249.3 Watts = 11/3
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Calculate the work done in lifting a 500-N barbell 2.2m above the floor what is the potential energy of the barbell when it is lifted to this height?
Work = Force x distance So since the barbell is 500N and the barbell travels 2.2 meters it becomes 500N x 2.2m = 1100 joules (N x m)
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