A spring with force constant k=1200N/m is compressed by x=2 cm using a block m1= 3 kg on a smooth horizontal surface .The block is then released from rest. After leaving the spring the block makes a head on collision with a second block m2=105 kg initially at rest .The two blocks stick together and continue to slide on a rough surface until they come to stop .The coefficient of kinetic friction between the block and the rough surface is 0.25. Determine : a. The speed of m1 when it leaves the spring. b.The speed of the two blocks just after the collision. c. The distance the two blocks travel on the rough surface before they come to stop.

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A spring with force constant k=1200N/m is compressed by x=2 cm using a block m1= 3 kg on a smooth horizontal surface .The block is then released from rest. After leaving the spring the block makes a head on collision with a second block m2=105 kg initially at rest .The two blocks stick together and continue to slide on a rough surface until they come to stop .The coefficient of kinetic friction between the block and the rough surface is 0.25. Determine :

a. The speed of m1 when it leaves the spring.

b.The speed of the two blocks just after the collision.

c. The distance the two blocks travel on the rough surface before they come to stop.

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