A ball is thrown vertically upward with an initial velocity of 96 feet per second. The distance s (in feet) of the ball from the ground after t seconds is s=96t-16t^2. (a) At what time t will the ball strike the ground?
(b) For what time t is the ball more than 128 feet above the ground?

Explanation:

a)

when is s = 0 ?

0 = t(96 - 16 t)

t = 0 of course, it starts at 0

t = 96/16 = 6 seconds

b)

when is s = 128 (two times, on the way up and on the way down)

128 = 96 t - 16 t^2

8 = 6 t - t^2

t^2 - 6 t + 8 = 0

(t-4)(t-2) = 0

so between 2 seconds and 4 seconds

the answer to the question is punishment. or more specifically, positive punishment.

positive punishment occurs when a behavior is given a negative consequence for the individual doing the behavior.

sara no longer wants to ask questions (the behavior) because she is ridiculed by mr. smith (the punishment).

reinforcement is inaccurate because reinforcement always gives positive consequences for the individual doing the behavior, be it by introducing a pleasant consequence or removing an unpleasant one.