The Acceleration of a Point Is Given By $a=5 t-t^{2}\left(\mathrm{~m} / \mathrm{s}^{2}\right)$

Short Answer

The acceleration of a point is given by $a=5 t-t^{2}\left(\mathrm{~m} / \mathrm{s}^{2}\right)$ . Write an equation for the velocity, if the velocity is $4 \mathrm{~m} / \mathrm{s}$ at $2 \mathrm{~s}$ .