A train travelling at 24 m/s slows down uniformly at 3.0 m/s2. It continues in the same direction.
How long does the train take to reach a speed of 6.0 m/s?
6.0 s6.0\ \mathrm{s}6.0 s
2.0 s2.0\ \mathrm{s}2.0 s
8.0 s8.0\ \mathrm{s}8.0 s
10 s10\ \mathrm{s}10 s