An object moves at a constant speed along a circular path in a horizontal plane with center at the origin. When the object is at x=+2 m, its velocity…

An object moves at a constant speed along a circular path in a horizontal plane with center at the origin. When the object is at $\displaystyle x=+2 \mathrm{~m}$, its velocity is $\displaystyle -4 \hat{\mathrm{j}} \mathrm{m} / \mathrm{s}$. The object's velocity (v) and acceleration (a) at $\displaystyle x=-2 \mathrm{~m}$ will be