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  • A mass of 2 kg is attached to a spring with a spring constant of 100 N/m. If the spring is compressed by 0.2 m, what is the spring force acting on the mass?

A mass of 2 kg is attached to a spring with a spring constant of 100 N/m. If the spring is compressed by 0.2 m, what is the spring force acting on the mass?

Option: 1

10 N


Option: 2

40 N


Option: 3

  20 N


Option: 4

  80 N


Answers (1)

best_answer

The spring force is given by F = -kx, 

where k is the spring constant and x is the displacement from the equilibrium position. In this case, the spring is compressed by 0.2 m, so x = -0.2 m (since the displacement is in the opposite direction of the spring's natural lengthening direction). 

Plugging in the values, 

we get F= (-100 N/m)(-0.2m)=20N.
 

so the answer is 20 N.

Posted by

Sayak

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