A mass of 0.30kg is attached to a spring and is set into motion with a period of 0.24s. what is the spring constant of the spring?

The spring constant of the spring is 205.42 N/m.

Explanation:

Springs have their own natural "spring constants" that define how stiff they are. The letter k is used for the spring constant, and it has the units N/m.

                                                         k = -F/x

The period of a spring-mass system is proportional to the square root of the mass and inversely proportional to the square root of the spring constant.

Given:

mass of object in SHM = m = 0.30 kg

Time period of the spring mass system = 0.24s

Spring constant = k ?

Finding 'k' using Time period 'T':

We know that  

you have to draw the persons position over there

the independent variable, or the one that is intentionally manipulated is the speed.