Question

as the shuttle bus comes to a sudden stop to avoid hitting a dog, it accelerates uniformly at -4.1 m/s2 as it slows from 9.0 m/s to 0 m/s. find the time interval of aceleration for the bus.

Answer 1

I think the answer would be 2 s. As it is a deceleration,
\[\frac{9.0 ms ^{-1}} {4.1 ms^{-2}} = 2.1...s\]