Question

An air rifle pellet of mass 2 g is fired into a block of modeling clay mounted on a model railway truck .The truck and modeling clay have a mass of 0.1 kg .The truck moves off after the pellet hits the modeling clay with an initial velocity of 0.8m/s.State any assumptions you made in this calculation.

Answer 1

Answer:

In this problem the momentum of the truck and plasticine and the bullet is the combined mass x velocity:

0.1+0.002 = 0.102kg x 0.8 m/s = 0.082 kgm/s

:

Velocity of the pellet:

m (bullet) v(bullet ) = 0.082 kgm/s

v = 0.082/0.002 = 41 m/s

Explanation:

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