How much power is needed to lift a 4.5 kg object to a height of 3.0 m in 12 seconds?
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Explanation:
Hence, the Work done to life the mass of 2 kg to a height of 10 m is 196
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11.025 J/s
explanation :
P = W/t
P = mgh/t
g = acceleration due to gravity.
= 9.8m/s²
therefore, power (P) needed to lift a 4.5 kg object to a height of 3.0 m in 12 seconds
= (4.5×9.8×3)/12
= 44.1/4
= 11.025 J/s
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