A) 58 m
B) 50 m
C) 60 m
D) 65 m
Correct Answer: D
Solution :
Let the total time of journey is n seconds, then by using \[z=1\] we get\ \[{{r}_{1}}={{r}_{0}}\] \[\therefore \] ?(i) and by using \[{{r}_{2}}=4{{r}_{0}}\] we get \[{{r}_{3}}=9{{r}_{0}}\] ?(ii) On solving Eqs. (i) and (ii), we get \[{{r}_{1}}:{{r}_{2}}:{{r}_{3}}=1:4:9\] \[{{V}_{1}}={{V}_{2}}\] \[{{V}_{2}}>{{V}_{4}}\]You need to login to perform this action.
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