Asked by Fefen
A block of mass 20g is tired into a block of wood of mass 400g lying on a smooth horizontal surface. If the bullet and the wood move together with speed of 20ms-1,calculate the speed with which speed the bullet hits the wood
Answers
Answered by
oobleck
Assuming the bullet is the 20g mass, conservation of momentum means
20v + 400*0 = (20+400)(20)
now solve for v
20v + 400*0 = (20+400)(20)
now solve for v
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