Question

How long would it take a 400 W motor to transfer 2000 J of energy

5s
50s
0.2s
0.02s

Answer 1

it's answer is 5 seconds,

Step-by-step explanation:

Given

Power (p) = 400 watt

work (w) = 2000 J

time taken (t) = ?

we know that,

p = w/t

400 = 2000 / t

t = 2000/400

Therefore t = 5 sec