Solved Numerical Problem No. 1 ( Unit-7: Oscillation); HSSC-1 (Class-11); Physics (New Book/KPK Text Board, Peshawar) With Verified Answers

A force of 0.4 N is required to displace a body attached to a spring through 0.1 m from its mean position. Calculate the spring constant of spring. (k = 4 N m⁻¹)

Given:

Force = F  = 0.4 N

Displacement = x = 0.1 m

To Find:

Spring constant = k = ?

Solution:

According to the Hook's Law

F = k x

or

k = `\frac {F}{x}`

by putting values

k = `\frac {0.4 N}{0.1 m}`

k =  4 N m⁻¹ ---------------Ans

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