Recent content by Myvalq

Why does it oscillate during the fall? I don't see any force acting downwards? When on the ground: The initial energy of the mass is E=mgh (where h is the height) and when spring goes down it changes to the energy of elasticity: E=(1/2)ky2. And when the spring is in the downmost position the E...

So while falling,, the spring comes back to its unstretched position (=equillibrium state?) and there stays until it hits the ground? And then some inertial force begins to act? (what to do with the height?)

Firstly, while falling, there appears a weightlessness=>no gravity downward. But then there is no equillibrium state because nothing acts against the elastic force of the spring. And therefore the mass goes up until the spring is completely scrolled. Is that right? And what happened next(after...

Homework Statement A mass (weight 100g) is hanged on a spring inside a cubic box (side a=1m). Stiffness of the spring is 10N*m-1. Equilibrium state of the spring is right in a centre of the box. Now, we let the box fall to the ground from height h. Describe a behaviour of the mass inside...

Homework Statement A polar bear is sitting on a floating iceberg. How close can the bear come to the edge of the iceberg, so that the water doesn't overflow the edge of the iceberg yet? Iceberg is a square shaped with side a=5m and thickness is 0,5m. Density of ice is 920kg.m^(-3), density...