Try the new Google Books
Check out the new look and enjoy easier access to your favorite features
Find the initial velocity of a car which is stopped in 10 seconds by applying brakes. The retardation due to brakes is 2.5m/s2 .
Open in App
Suggest Corrections
8
Find the initial velocity of a car which is stopped in 10 seconds by applying brakes. Retardation due to brakes is 2.5 ms-2.
Let initial velocity be u.Final velocity is v= 0 m/s.Time taken by body to come to rest = 10 sec.
Retardation =2.5 ms-2.
We know v = u +at.Then u = v - at.u = 0 - (-2.5 X 10) = 25 m/s.So initial velocity of the body is 25 m/s.
Concept: Equations of Motion by Graphical Method
Is there an error in this question or solution?