Who works with V-Ray version lower than 3.1, pay attention to materials section BRDF (Microfaset GTR (GGX)), if your version is older than 3.1 - this section will be empty, and you have to choose: Blinn, Ward or Phong , d dependence on material

Name: Newton_Cradle_M06
Dimensions: 35x24x21 cm

NumVerts: 19478
NumPolys: 19200
NumFaces: 38704


Render Engines:
- VRay_RT

Files Version:
- Max_v2012
- FBX_v2009

What is a Newton cradle and how does it work?
The Newton's cradle is a device that demonstrates the conservation of momentum and the conservation of energy with swinging spheres. When one sphere at the end is lifted and released, it strikes the stationary spheres, transmitting a force through the stationary spheres that pushes the last sphere upward. The last sphere swings back and strikes the nearly stationary spheres, repeating the effect in the opposite direction. The device is named after 17th-century English scientist Sir Isaac Newton. It is also known as Newton's pendulum, Newton's balls, Newton's rocker.
https://www.youtube.com/watch?v=0LnbyjOyEQ8