1.

A stone is dropped from a tower. It was found that it covered a distance of \[45\,\,m\] during its last second of the fall. Calculate the time of the fall and the height of the tower?\[(g=10\,\,m\,\,{{s}^{-2}})\]

A. \[5s,\,\,45m\]     
B.        \[10s,\,\,90m\]
C. \[5s,\,\,125m\]     
D.        \[10s,\,\,100m\]
Answer» D.        \[10s,\,\,100m\]


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