Find the recoil velocity of the nucleus.

  • Thread starter looi76
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  • #1
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Homework Statement


An alpha particle is emitted from a stationary nucleus at [tex]1.8 \times 10^7 ms^{-1}[/tex].The mass of the particle is [tex]4u[/tex] and that of the nucleus is [tex]212u[/tex]. (u is a unit of mass equal to [tex]1.66 \times 10^{-27}kg[/tex].)
(a) Find the recoil velocity of the nucleus.
(b) Explain how you know the direction of movement.

Homework Equations


Momentum before collision = Momentum after collision

The Attempt at a Solution


What does recoil velocity mean?
 

Answers and Replies

  • #2
alphysicist
Homework Helper
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Hi looi76,

The recoil velocity of this nucleus is the velocity of the nucleus after the alpha particle is emitted. What do you get?
 

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