A bullet goes through a ballistic pendulum, what is it's initial velocity?

  • Thread starter Nibbz
  • Start date
  • #1
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Homework Statement


A 7.0-g bullet is fired into a 1.5-kg ballistic pendulum. The bullet emerges from the block with a speed of 200 m/s, and the block rises to a maximum height of 12 cm. Find the initial speed of the bullet.


Homework Equations


Conservation of Momentum


The Attempt at a Solution


I first converted all of my units into SI units. I then went to use the Conservation of Momentum for Glancing Collisions, with X and Y components, but I am confused as to what the components of the bullet are. All I know is that the pendulum rises at some angle to .12 m above it's original position and I'm not sure how to interpret this into an equation. Any assistance will be greatly appreciated.
 

Answers and Replies

  • #2
Lok
555
23
Is it necessary to do this with Cons of momentum as Cons of energy seems easier?
 

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