Problem

A particle starts from the origin of coordinates at time

t = 0

and moves in the

xy

plane with a constant acceleration

\alpha

in the

y

-direction. Its equation of motion is

y = \beta x^2

. Its velocity component in the

x

-direction is a. variable b.

\sqrt{\frac{2\alpha}{\beta}}

\frac{\alpha}{2\beta}

\sqrt{\frac{\alpha}{2\beta}}