The equation v = a*del_t is sometimes used

to find velocity when acceleration and

time are known. Another form of this

equation is v = v_0 + a*del_t. In this second

form of the equation, the function of the

term v_0 is to:

A. indicate that the equation is valid

only for an object that starts at rest.

B. determine the time at which

velocity is equal to zero.