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In: Physics

Part C Refer back to example 9-12. A bullet with a mass of m=8.10gm and an...

Part C

Refer back to example 9-12. A bullet with a mass of m=8.10gm and an initial speed of vi=320m/s is fired into a ballistic pendulum. What mass must the bob have if the bullet-bob combination is to rise to a maximum height of 0.125 m after the collision?

Express your answer using two significant figures.

Solutions

Expert Solution

Given:

Mass of the bullet,

Initial speed of the bullet,

Maximum height of the bullet-bob combination,

=================

First, find the velocity of the bullet-bob combination just after the collision

Consider the bullet-bob combination

As the bullet-bob combination rise, its kinetic energy after collision is converted into potential energy.

==================================

Consider the collision

During collision momentum is conserved

Initial momentum = Final momentum

ANSWER:

=============================

genius_generous answered 2 years ago
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