Answer:
t = 1.277 sec and t = 2.848 sec
Step-by-step explanation:
This problem is much more easily done by graphing it than by computing it using algebra.
The values of t we're looking for are the ones that make x = 0, so we want the solutions of on the interval [0, 3].
According to the graph, this is true when t = 1.277 seconds and t = 2.848 seconds.
