#1**+2 **

y = x^3

Sequentially....we have

1 - Vertcal stretch by a factor of 3 ⇒ y = 3x^3

2 - Shift 4 units to the left ⇒ y = 3(x + 4)^3

3 - Shift 3 units down ⇒ y = 3(x + 4)^3 - 3

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P = kv^3 we need to find the variation constant, k

500 = k (10)^3

500 = k * 1000 divide both sides by 1000

(1/2) = k

So at v = 12 m/s , we have that

P = (1/2) (12)^3

P = (1/2) (1728)

P = 864 kW

CPhill
Dec 1, 2017