Le 5 extra

1 Le 5. Extra uppgifter från Halliday Fundamentals of physics: 8.7; 8.21; 8.31; 8.35; 8.53; 8.59; 8.75; 8.121 eller Principles of Physics: 8.7; 8.23; 8.29; 8.37; 8.55; 8.57; 8.69; 8.77 8.7. Fig.8-34 shows a thin rod of length L=2.00 m and negligible mass, that can pivot about one end to rotate in a vertical circle. A ball of mass m=5.00 kg is attached to the other end.

• initial speed
• work by a spring force
• kinetic energy of the system
• cord
• rest
• spring
• point
• mass
• potential energy
• block