A block of mass $m$ moving with speed $v$ compresses a spring through distance $x$ before its speed is halved. What is the value of spring constant ?
A block of mass $m$ moving with speed $v$ compresses a spring through distance $x$ before its speed is halved. What is the value of spring constant ?
- A
$\frac{3mv^2}{4x^2}$
- B
$\frac{mv^2}{4x^2}$
- C
$\frac{mv^2}{2x^2}$
- D
$\frac{2mv^2}{x^2}$
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