Asked by Oinam joymasta meitei
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
Answered by
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)
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