Question
A simple pendulum of length 1m has a wooden bob of mass 1kg.it is strike by a bullet of mass 10^-20 kg moving with a speed of 2×10^2m/s.The bullet gets embedded into the bob. Obtain the height to which the bob rest before swing back.
Answers
Scott
momentum is conserved ... find the velocity of the bullet/bob after impact
calculate the kinetic energy of the bullet/bob
the K.E. becomes P.E. ... 1/2 m v^2 = m g h ... h = v^2 / (2 g)
calculate the kinetic energy of the bullet/bob
the K.E. becomes P.E. ... 1/2 m v^2 = m g h ... h = v^2 / (2 g)