A bullet having a mass of 10kg and moving with speed of 1.5 m/s,penetrates o thick wooden plank of mass 900 g . The plank was initially at rest . The bullet gets embedded in the plank and both move together. determine their velocity (give answer in step by step,so i can understand) std 9th,Maharashtra board ,science subject.
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Answer:
m1=10kg
v1=1.5m/s
m2=0.9kg
v2=v
so, m1v1=m2v2
10×1.5=0.9×v
v=16.66m/s
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