Body A starts from rest with an acceleration a1. After two seconds another body B starts from rest with an acceleration a2. If they travel equal distances in fifth second. The ratio a1 : a2 will be equal to:
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a
9:5
b
5:9
c
5:7
d
7:9
answer is B.
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Detailed Solution
According to equation, 0+a122×5-1=0+a122×3-1⇒a1a2=59