physics
posted by kyla .
how long will it take a 1750watts motor to a lift a 285kg piano to a sixth storey window 1.6 meters above

P=F*d/t
p=1750 w
F=weight of the piano=9.81*285
solve for t! :D
posted by kyla .
how long will it take a 1750watts motor to a lift a 285kg piano to a sixth storey window 1.6 meters above
P=F*d/t
p=1750 w
F=weight of the piano=9.81*285
solve for t! :D