Question

8. What is the instantaneous velocity for f(t) = t^2+ 3t at t = 4 seconds?
5
15
21
17

Answer 1

Answer:

Velocity is the time rate of change of distance[f(t)]

df(t)/dt = 2t + 3

At t= 4

V = 2(4) + 3

V= 11ms-¹.

Now this is only correct if i'm working with the values you gave.