Please help differential equations

abc > v > Mi Amor 2: Ar AaBbCcDdE AaBbCcDdE AaBbCcDdE AaBbCcDdE A IIII V v Emphasis Heading 1 Heading 2 Normal Styles Pane A force of 2 pounds stretches a spring 1 foot. A mass weighing 3.2 pounds is attached to the spring, and the system is then immersed in a medium that offers a damping force that is numerically equal to 0.4 times the instantaneous velocity. a. [8 pts] Find the equation of motion if the mass is initially released from rest from a point I foot