As a shuttle bus comes to a sudden stop to avoid hitting a dog, it accelerates uniformly at #-4.1# #m##/##s^2# as it slows from #9.0# #m##/##s# to #0.0# #m##/##s#. What is the time interval of acceleration for the bus?

1 Answer
Sunayan S
May 19, 2017

I suppose the answer to be #2.195s#.

Explanation:

As per one dimensional motion equations ,#color(red)(v=u+at#(where #v=#final velocity and #u=#initial velocity #a=#acceleration and t=time interval.)
Hence,
#0=9+(-4.1×t)#
#=>t=2.195#

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