A 300 kg cart is at rest at point A. It then slides down the track and all its energy is conserved. 10. What is its potential energy at point A?
11. What is its kinetic energy at point A?
12. What is its potential energy at point B?
13. What is its kinetic energy at point B?
14. If it’s new kinetic energy at point B is 50, 000 J, how much energy has been lost friction?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.

What property of an object determines its inertia?

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus