# If the length of a 22 cm spring increases to 95 cm when a 7 kg weight is hanging from it, what is the spring's constant?

Jan 25, 2017

spring constant =93.97$\frac{N}{m}$

#### Explanation:

Simply
using formula

$F = k \cdot x$
$k = \frac{f}{x}$
$k = 7 \cdot \frac{9.8}{95} - 22$
$k = 93.97 \frac{N}{m}$