# Three students derive the derive the following equations in whic

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Three students derive the derive the following equations in which x refers to distance traveled, v the speed, a the acceleration (m/s2), and t the time, and the subscript (0) means a quantity at time t = 0:

(a) x = vt2 + 2at

(b) x = vot + Â½ at2, and

(c) x = vot + 2at2.

What of these could possibly be correct according to a dimensional check?

(a) x = vt2 + 2at

(b) x = vot + Â½ at2, and

(c) x = vot + 2at2.

What of these could possibly be correct according to a dimensional check?

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