A spring with a spring constant of 40.1 N/m is attached to different masses, and the system is set in motion.

What is its period for a mass of 2.8 kg?

To find the period of a mass-spring system, we can use the formula:

T = 2π√(m/k)

Where:
T is the period of the system
m is the mass attached to the spring
k is the spring constant

In this case, the mass (m) is given as 2.8 kg, and the spring constant (k) is 40.1 N/m.

Plugging these values into the formula, we have:

T = 2π√(2.8 kg / 40.1 N/m)

To calculate the numerical value, we can use a calculator:

T ≈ 2π√(0.06982543663990025)

Now, let's calculate it step by step:

1. Convert the square root into decimal form:

√(0.06982543663990025) ≈ 0.264064490522704

2. Multiply it by 2π:

2π x 0.264064490522704 ≈ 1.6583984362377157

So, the period (T) for a mass of 2.8 kg attached to a spring with a spring constant of 40.1 N/m is approximately 1.66 seconds.