omentum Begin Date: 418/2017 12:00:00 AM Due Date: 424/2017 11 59:00 PM End Date
ID: 2077252 • Letter: O
Question
omentum Begin Date: 418/2017 12:00:00 AM Due Date: 424/2017 11 59:00 PM End Date: 5/11/2017 1159:00 PM n0%) Problem 7: During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at um ball has a mass ofmi kg and the of catches 50% Part (a) If the performer is on nearly frictionless roller skates, what is his recoil in terms of the initial masses and velocity? Grade Summary mi vimpl Late Work 7 8 9 HOME Late Potential 85% Submissions Attempts remaining 17 N BACKSPACE CLEAR I give up! Feedback Feedback deduction per feedback Hints: for a deduction Hints remaining -Momentum will be conserved in this collision, so just set the initial momentum of the cannon ball equal to the find momentum of the performer cannon ball (since he catches it).Explanation / Answer
mass of canon ball m1=8.5 kg
performer mass m2
velocity of canon ball is v
let recoil speed is vf
from law of conserveration
m1v=(m1+m2)vf
vf=m1v/(m1+m2)
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