Originally Posted by

**asweet1** Let v(t)=t^2-2t be the velocity, in ft/sec, of an objectat time t, in seconds.

(A) What is the initial velocity v(0)? Im pretty sure this answer is zero.

Mr F says: Correct.

(B)When does the object have a velocity of Zero?

Mr F says: Solve 0 = t^2-2t => 0 = t(t - 2).

(C) What is the meaning of the quantity v(3)? What are its units? I think the answer is 3ft/sec

Mr F says: Your units are correct. The meaning is that it gives the rate of change of the objects displacement with respect to time at t = 3.