A small ball (m= 0.25kg) traveling to the right with a velocity of 16.0m/s makes a perfectly elastic collision with a heavier ball (m=2.00kg) moving to the left with a velocity of 4.00m/s. What is the final velocity of each ball?

Thank you for the opportunity to help you with your question!

m1u1+m2u2 =m1v1+m2v2

ie momentum before collision = momentum after collision

v1=u1(m1-m2)+2m2u2/m1+m2

v1=4(2-0.25)+2*0.25*16/2.25

= 6.66 for heavier ball

v2=16(0.25-2)+2*2*4/2.25

=-5.33 for smaller ball

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up