A body $A\ $starts from rest with an acceleration $a_{1}.$ After 2 seconds, another body $B\ $starts from rest with an acceleration $a_{2}.$ If they travel equal distances in the 5th second, after the start of A, then the ration $a_{1}:a_{2}$ is equal to

Question

Dr. Abubacker · Accepted Answer

(a) According to problem
Distance travelled by body $A$ in $5^{th}\ sec$ and distance travelled by body $B$ in $3^{rd}\ sec$. of its motion are equal.
$0 + \frac{a_{1}}{2}(2 	imes 5 - 1) = 0 + \frac{a_{2}}{2}\lbrack 2 	imes 3 - 1brack$
$9a_{1} = 5a_{2} \Rightarrow \frac{a_{1}}{a_{2}} = \frac{5}{9}$

Q. A body $A\ $starts from rest with an acceleration $a_{1}.$ After 2 seconds, another body $B\ $starts from rest with an acceleration $a_{2}.$ If they travel equal distances in the 5th second, after the start of A, then the ration $a_{1}:a_{2}$ is equal to

Explanation

Reviewed by Dr. Abubacker

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