How long will it take a 2,442 W motor to lift a 244 kg piano to a sixth story window 36 m above?
Added by Mohamd A.
Step 1
Work = force x distance Force = mass x gravity Force = 244 kg x 9.8 m/s^2 (acceleration due to gravity) Force = 2391.2 N Work = 2391.2 N x 36 m Work = 86112 J Show more…
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