The power, P (watts), of a car engine is proportional to the square of its speed, s (m/s). When s=45, P=2180. Work out the speed (to 1 DP) when the power is 2320 watts

20

step-by-step explanation:

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step-by-step explanation:

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.