If velocity of car decrease by 50% then % in stopping distance is ....
If velocity of car decrease by 50% then % in stopping distance is ....
Piyush , 7 Years ago
Grade 11
Mechanics> If velocity of car decrease by 50% then %...
1 Answers
Khimraj
let the velocity is u and retardation is a and stoppind distance s
then
02 = u2 – 2as
then s = u2/2a
If velocity of car decrease by 50%
then
u2/4 = u2 – 2ad
then d = 3u2/8a
so it is 75% of the stopping distance.
Hope it clears.
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