Question

How much work can a 22kw car engine do in 60 seconds

Answer 1

Answer:

Work done = 1320000J or 1.32 × 10^6J

Explanation:

power =22kw = 22000w

Time = 60seconds

From: power = work done/ Time

work done = power × time

work done = 22000 × 60

work done = 1320000J or 1.32 ×10^6 J

Answer 2

Answer:

13.2 x 10^5 J

Explanation:

Power = work/time

Given

Power = 22kw

= 22 x 1000 = 22000w

Time = 60 secs

Therefore

22000 = work/60

Cross multiply

Work = 22000 x 60

= 1320000

= 13.2 x 10^5J