Posted by leigha on .
When the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 5.3 m/s2 as it slows from 9.5 m/s to 0 m/s.
Find the time interval of acceleration for the bus.
Answer in units of s

11th grade 
Anonymous,
Vf=0
Vi=9.5m/s
A=5.3m/s2
T=?
Vf=Vi+At
0=9.55.3m/s2
9.5=5.3m/s2(t)
solve for T
T=1.8s