Two identical blobs of clay mass m moving toward each other at speed v have a he

ID: 1989266 • Letter: T

Question

Two identical blobs of clay mass m moving toward each other at speed v have a head-on collision. They stick together.

Use conservation of momentum to calculate the final speed of the combined blobs of clay.

What was the initial KE of the two-clay-blobs system?

What is the final KE of the two-clay-blobs system?

By how much did the KE of the two-clay-blobs system change?

Assuming that all of the "lost" KE is converted to heat within the clay itself, by how much does the temperature of the clay blobs increase?

final speed of combined blob of clay = v/2 initial k.e = 1/2 mv^2 final k.e = 1/4 mv^2 change in k.e = 1/4 mv^2

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