A) 20 m
B) 400 m
C) 1440 m
D) 2880 m
Correct Answer: B
Solution :
Here\[v=144\ km/h=40m/s\] \[v=u+at\]Þ \[40=0+20\times a\Rightarrow a=2\ m/{{s}^{2}}\] \[\therefore \] \[s=\frac{1}{2}a{{t}^{2}}=\frac{1}{2}\times 2\times {{(20)}^{2}}=400\ m\]
You need to login to perform this action.
You will be redirected in
3 sec
