A) \[\frac{abt}{(a+b)}\]
B) \[\frac{{{a}^{2}}t}{a+b}\]
C) \[\frac{at}{(a+b)}\]
D) \[\frac{{{b}^{2}}t}{a+b}\]
Correct Answer: A
Solution :
\[v=u+at\] \[t={{t}_{1}}+{{t}_{2}}\] \[{{t}_{2}}=t-{{t}_{1}}\] \[{{v}_{1}}=0+a{{t}_{1}}\] When car finally comes for rest v = 0 \[0=v-b(t-{{t}_{1}})\] \[\left( {{t}_{1}}=\frac{b}{a+b}{{t}_{1}}v=\frac{ab}{a+b}t \right)\]You need to login to perform this action.
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