Set 7 ± Catching a Ball on ice C) 17 of a Oluf catches the ball with ahat speed

Question

Set 7 ± Catching a Ball on ice C) 17 of a Oluf catches the ball with ahat speed ty do Olal and the bal move afterward? Express your answer nunerically in meters per second View Available Hins) Constans 1 ored Tabl Olaf is standing on a sheet of ice that covers the footbal stadium parking lot in Buffalo New York, thore is triction between his feet and the ice A friend throws Olal a ball of mass 0 400 kg that i traveling horlcontaly t 113 m/s Olafs mass is 735 kg (Figure 1) m/s Subm Preoous Answer Figure xncorrect Try Again:2 attempts remaining: no points deducted A. Parts the ball hits Olaf and bounces off his ches ly at 8 50/s in the opposite drection ahat is Express you armericaly in meters per secord View Avaiabl Type here to search

Explanation / Answer

a)

By Conservation of momentum

MballVball+MolafVolaf =(Mball+Molaf)V

0.4*11.3+73.5*0=(0.4+73.5)V

V=0.06116 m/s

b)

By Conservation of momentum

MballVball+MolafVolaf =MballVball'+MolafVolaf'

0.4*11.3+0=0.4*(-8.5)+73.5*Volaf'

Volaf'=0.1078 m/s

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