KinematicsHard
Question
A particle moving along a straight line with uniform acceleration has velocities 7m /s at A and 17 m/s at C. B is the mid-point of AC. Then : -
Options
A.The velocity at B is 12 m/s
B.The average velocity between A and B is 10 m/s
C.The ratio of time to go from A to B to that from B to C is 3 : 2
D.The average velocity between B and C is 15 m /s
Solution
Motion A to C ⇒ 172 = 72 + 2as
Motion A to B ⇒ vB2 = 72 + 2a
= 
(A) vB =
= 13 m/s(B) < vAB > =
= 10 m/s(C) t1 =
, t2 = 
(D) < vBC > =
= 15 m/sCreate a free account to view solution
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