W11-Post: Momentum tem 7 Olal catches the ball, with what speed r do Olaf and th

Question

W11-Post: Momentum tem 7 Olal catches the ball, with what speed r do Olaf and the ball move afterward? Express your answer numerically in meters per second Oal is standing on a sheel of ice that oovers the footbal stadium parking lot in Bu alo, New York; there is negligble friction belween his foet and the ice. A friend throws Olalf a ball of mass 0.400 kg that is traveling horizontaily at 11.1 m/s.Olar's mass is 685kg (Figune View Available Hints) Py Part B ?fthe bal hts af and bounces of his chest horizontally at Express your answer mumericalilty in meters per second View Available Hins Figure 1 of 10 m/s in the apposhe direc 3 4 ock

Explanation / Answer

a)

By Conservation of momentum

Mo*Vo+ Mb*vb = (Mo + Mb)*Vf

0+ (0.4*11.1) = (68.5+0.4)*Vf

Vf = 0.06444 m/s

b)

By Conservation of momentum

Mo*Vo+ Mb*vb = (Mo Vof+ MbVbf

0+ (0.4*11.1) = 68.5*Vof-0.4*8.1

Vf=0.1121 m/s

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