A) \[2m{{s}^{-1}}\]
B) \[4m{{s}^{-1}}\]
C) \[6m{{s}^{-1}}\]
D) \[8\,m{{s}^{-1}}\]
E) \[1\text{ }m{{s}^{-1}}\]
Correct Answer: B
Solution :
Velocity at\[3s=\]total algebraic sum of area under the curve or \[v=4\times 2-4\times 1\] \[=8-4=4m{{s}^{-1}}\]You need to login to perform this action.
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