A) \[20\,m{{s}^{-1}}\]
B) \[40\,m{{s}^{-1}}\]
C) \[25\,m{{s}^{-1}}\]
D) \[10\,m{{s}^{-1}}\]
Correct Answer: A
Solution :
Let v be the relative velocity of scooter(s) w.r.t. bus (B), then |
\[\to \] \[{{v}_{s}}=v+{{v}_{B}}\] (i) |
Relative velocity = displacement/time |
\[=\frac{1000}{100}=10\,m{{s}^{-1}}\] |
Now, substituting the value of v in Eq. (i), we |
Get \[{{v}_{s}}=10+10=20\,m{{s}^{-1}}\] |
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