Problem: A mass oscillates on a horizontal spring with a maximum speed of $10$ m$/$s$.$ If

the amplitude of the oscillation is half and the mass is quadruple, then the maximum

speed will be

$2\mathrm{.}5$ m$/$s

$4\mathrm{.}0$ m$/$s

$8\mathrm{.}5$ m$/$s

$10$ m$/$s

$15$ m$/$s