In: Physics
A block of mass 2 kg and a block of mass 3 kg are sliding on a frictionless surface. They collide and stick together. Before the collision the first block was travelling at 5 m/s in the positive x direction. After the collision the two blocks are travelling at 6 m/s in the negative x direction. What was the x component of the velocity of the second block before the collision?
Given:
Mass of block 1,
Initial velocity of the block 1,
Mass of block 2,
Given that after the collision the blocks stick together
Final velocity of the blocks,
Find initial velocity of the block 2
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Consider the collision
During collision momentum is conserved
Initial momentum = Final momentum
ANSWER:
Initially, block 2 is traveling along negative x-direction at 13.333m/s.
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