Answer:
130.1 W
Step-by-step explanation:
Power is work or energy divided by time, so power has the units of joules/second, which is called the watt.
Formula
Power = gravitational potential energy / time
Gravitational potential energy = m g h
here m = mass
g = gravity die to acceleration = 9.81 m/s²
h = height
Conversion Ib to kg
1 Ib = 0.453592 kg
32 Ib = 14.5 kg
Conversion feet to m
1 feet = 0.3048 m
12 feet = 3.6576 m
Plug value in the formula
(14.5) (9.81) (3.6576)
520.3 J
520.3 / 4
130.1 W
