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A body starts with an initial velocity of 20 m/s and move...

A body starts with an initial velocity of 20 m/s and moves with a uniform acceleration, a, for 15 seconds. Which of the following equations represents the distance, S, traveled?

A.

300 + 56a2

B.

300 + 225a2

C.

300 + 2252a

D.

300a + 2252

Correct answer is B

u = 20 ms-1, t = 15 s
S=ut+1/2at2
S = 20(15) + 12×a×152
∴ S = 300 + 225a2