A body travels \[200\,\,cm\] in the first two seconds and \[220\,\,cm\] in the next four seconds with constant acceleration. Find the velocity at the end of the seventh second from the start.

A body travels \[200\,\,cm\] in the first two seconds and \[220\,\,cm\

1.	A body travels \[200\,\,cm\] in the first two seconds and \[220\,\,cm\] in the next four seconds with constant acceleration. Find the velocity at the end of the seventh second from the start.
A.	\[5\,\,cm\,\,{{s}^{-1}}\]
B.	\[10\,\,cm\,\,{{s}^{-1}}\]
C.	\[15\,\,cm\,\,{{s}^{-1}}\]
D.	\[20\,\,cm\,\,{{s}^{-1}}\]
Answer» C. \[15\,\,cm\,\,{{s}^{-1}}\]

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A body travels \[200\,\,cm\] in the first two seconds and \[220\,\,cm\] in the next four seconds with constant acceleration. Find the velocity at the end of the seventh second from the start.

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