a 475 kg pre-stressed concrete beam is to be raised 10.0 m in 24.0 s. how many kw of power is needed to for the job
M*g = 475 * 9.8 = 4655 N.
P = F*d/t = Mg * d/t = 4655 * 10/24 =
1940 J/s = = 1940 W. = 1.94 kW
P = F*d/t = Mg * d/t = 4655 * 10/24 =
1940 J/s = = 1940 W. = 1.94 kW