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A 10 gram bullet hits and becomes embedded in a 2 kg block of wood which is initially at rest.
What was the bullet's speed before the collision if the combination has a speed of 3 m/s after
the collision?
Linear momentum : my question is  Is this an isolated system or nonisolated? Please tell me which one .
 one year ago
 one year ago
A 10 gram bullet hits and becomes embedded in a 2 kg block of wood which is initially at rest. What was the bullet's speed before the collision if the combination has a speed of 3 m/s after the collision? Linear momentum : my question is  Is this an isolated system or nonisolated? Please tell me which one .
 one year ago
 one year ago

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P0sitr0nBest ResponseYou've already chosen the best response.0
need to do it with forces or energy?
 one year ago

3psilonBest ResponseYou've already chosen the best response.2
So use conservation of linear momentum p = mv so \[m_{1}v + m_{2}v = (m_{1}+m_{2})V_{f}\] Now plug in .The wood is at rest so v wood = 0 \[m_{1}v + m_{2}(0) = (m_{1}+m_{2})3\] 10(v) = 12(3) 36/10 = v initial of bullet
 one year ago
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