A body of mass $M$ is dropped from a height $h$ on a sand floor. If the body penetrates $x\,\,cm$ into the sand, the average resistance offered by the sand of the body is
A body of mass $M$ is dropped from a height $h$ on a sand floor. If the body penetrates $x\,\,cm$ into the sand, the average resistance offered by the sand of the body is
- A
$Mg\left( {\frac{h}{x}} \right)$
- B
$Mg\left( {1\,+\,\frac{h}{x}} \right)$
- C
$Mgh\,+\,Mgx$
- D
$Mg\left( {1\,-\,\frac{h}{x}} \right)$
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