Question $6$

$2$ pts

A $250-$kg crate is placed on an adjustable inclined plane. If the crate slides down the incline with an acceleration of $0\mathrm{.}70\frac{m}{s^2}$ when the incline angle is $25,$ then what should the incline angle be for the crate to slide down the plane at constant speed? $(g=9\mathrm{.}8\frac{m}{s^2})$

$25$ degrees

$21$ degrees

$12$ degrees

$29$ degrees