WAEC - Physics (2001 - No. 7)
Which of the following equations represents the distance x, travelled by a body moving on a straight road with a constant speed? [The other symbol have their usual meanings]
x = Ut + \(\frac{1}{2}t^2\)
x = Ut
x = \(\frac{V^2 - U^2}{2a}\)
x = -\(\frac{1}{2} at^2\)
Vysvětlení
For a body moving at a constant speed, the distance x traveled can be represented by the equation:
x = U t
(constant speed = zero acceleration)