Let 𝑣(𝑡) = 𝑡

Question

2 − 2𝑡 be the velocity, in 𝑓𝑡⁄𝑠𝑒𝑐, of an object at time 𝑡, in seconds.
a. What is the initial velocity, 𝑣(0)?
b. When does the object have a velocity of zero?
c. What is the meaning of the quantity 𝑣(3)? What are its units

Answer 1

(a) really? replace t with 0.
(b) when 2-2t = 0
(c) the velocity at time t=3. And they told you the units above.