Question

a) If a person weighing 60 kg runs up stairs whose height is 400
meters, what is the power (in Watts and hp) developed by the person
if it takes 12 minutes to climb that height?

b) If an aircraft engine develops a force of 200,000 Newtons
forward on the aircraft, what is the power (in Watts and hp)
developed by the engine if the aircraft is flying at 300 meters /
sec.?

c) If a motor has an input power equal to 3750 Watts and an
efficiency of 90%, what is the output power in Watts and in motor
horsepower?

d) If a 50 hp motor has an efficiency of 0.80, what is the motor's
input power?

e) If a motor has an input power equal to 400 Watts and an output
power of 300 Watts, what is the efficiency (in decimal and
percentage) of the motor?

Answer #1

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 11 minutes ago

asked 11 minutes ago

asked 11 minutes ago

asked 12 minutes ago

asked 17 minutes ago

asked 17 minutes ago

asked 21 minutes ago

asked 26 minutes ago

asked 26 minutes ago

asked 26 minutes ago

asked 29 minutes ago