You can alter of the options at the right, and then press the start simulation to start it
Click on a button to toggle if it enabled or disabled

Data

Mass (KG) 5.00
k/Elastic constant (N/m) 500.00
Amount stretched (m) 0.5
Angle (degrees) 45
Position x (m) 0.00
Height (m) 0.00
Velocity (m/s) 0.00
Mass (kg)
1
5
10
Elastic Constant (N/m)
100
500
1000
Amount stretched(m)
0
0.5
1
Angle(degrees)
0
45
90