A block of mass m = 30 kg and speed V is behind a block of m…
A block of mass m = 30 kg and speed V is behind a block of mass M = 80 kg and speed of 0.5 m/s as shown in the figure. The surface is frictionless and the blocks collide and couple. After the collision, the blocks have a common speed of 0.9 m/s. What is the initial speed V of the 30-kg block?
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