shantae4
Answered

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4. A bullet of mass 30 g is fired from a rifle of mass 5kg at a speed of 259m/s. 

a) What is the momentum of the rifle just after the bullet is fired? 

b) What is the recoil velocity of the rifle?​

Sagot :

Answer:

Rifle Momentum=7.77kg*m/s v'= 1.554 m/s

Explanation:

a) m1v1 + m2v2 = m1v1' + m2v2'

0+0 = 0.03*259 + P(rifle momentum)

solve for P

p= 7.77kg*m/s

b) 7.77= 5*v'

v'= 1.554 m/s

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