KinematicsHard
Question
A body starts from rest with an acceleration a1. After two second another body B starts from rest with an acceleration a2. If they travel equal distances in fifth second after the starts of A, the ratio a1 : a2 will be equal to :
Options
A.9 : 5
B.5 : 7
C.5 : 9
D.7 : 9
Solution
Distance travelled in fifth second for first body = distance travelled in 3rd second for second body,
S5 = S3
St = u +
S5 = 0 +
a1
S3 = 0 +
a2
S5 = S3
St = u +
S5 = 0 +
a1 S3 = 0 +
a2 Create a free account to view solution
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