Order Description
A homogenous lead bullet has a density 0.01134 g/cm3 and radius 2.7 cm
It is fastened on the middle of a straight and homogenous rod of mass 2.0 kg and length 0.80m (see image)
The bullet may be treated as a mass point particle in relation to the rod.
The rod is fixed to a rotation axis at one end and at first is at rest straight down
a) What is the mass of the bullet?
b) What is the distance from rotation axis to the center of mass for system+bullet
c) System is now set in small oscillations by pulling 5 degrees out and let go. Find period T
d) Explain with calculation why you can treat bullet as mass point particle
