Question

C. O 32.44 m/sD. O 24.45 m/sE. O 3.293 m/s6. A certain spring extends by 0.4 m when an objectof mass 0.9 kg hangs from it. Calculatethe Hook's constant of the spring. (1 point)A. O13.416 N/mB. O 33.766 N/mC. 38.169 N/mD. O 22.05 N/mE. O8.241 N/m

Answer 1

Given,

The mass of the object is

`m=0.9\text{ kg}`

The length of the spring is

`x=0.4\text{ m}`

To find: Calculate the Hook's constant.

Solution:

Hook's law is given as

`F=kx`

Now,

`\begin{gathered} k=(mg)/(x) \\ k=(0.9*9.8)/(0.4) \\ k=22.05\text{ N/m} \end{gathered}`

Hence, the given option (d) is correct.