Question

Define watt. Express kilowatt in terms of joule per second. A 150 kg car engine develops 500 W for each kg. What force does it exert in moving the car at a speed of 20ms -¹?Compare the power at which each of​

Answer 1

Watt is 1 joule of energy per second . which corresponds to the consumption of energy on an electric circuit.

KW = 1000w

kwh = 1000 × 1 hr

kwh = 1000 × 3600 sec

KWH = 3600000

KWH = 3.6 × 10⁶ j/s

1kwh = 3.6 × 10⁶ j/sec

Ur question is incomplete