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CBSE Class 11-science Answered

A bus moving on straight road comes to rest on applying breaks after travelling distance "d".If passengers add 80% weight to bus and travelling with same speed and braking force is same then find stopping distance of bus.
Asked by Shubhankar | 25 May, 2012, 02:43: PM
answered-by-expert Expert Answer
Retardation = Breaking force/Mass of bus =a
If initial velocity of bus is u and final velocity is v=0,
u2-v2=2ad
u2-0=2ad
d=u2/2a
 
IF the passengers of the bus add to frictional force, it does not affect the distance d, but of they add to the braking force, then the distance d changes.
Answered by | 11 Jun, 2012, 12:58: PM
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