Calculate the spring constant if the mass is 55g and the extension is 2m​

0.2695 N/m

Explanation:

Applying,

F = ke Equation 1

Where F = Force on the spring, k = spring constant, e = extension.

make k the subject of the equation

k = F/e Equation 2

But,

F = mg Equation 3

Where m = mass, g = acceleration due to gravity

Substitute equation 3 into equation 2

k = mg/e Equation 4

From the question,

Given: m = 55 g = 0.055 kg, e = 2 m

Constant: g = 9.8 m/s²

Substitute these values into equation 4

k = (0.055×9.8)/2

k = 0.2695 N/m

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.