#$&*
Phy 231
Your 'cq_1_24.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** CQ_1_24.2_labelMessages **
A steel ball of mass 60 grams, moving at 80 cm / sec, collides with a stationary marble of mass 20 grams. As a result of the collision the steel ball slows to 50 cm / sec and the marble speeds up to 70 cm / sec.
Is the total momentum of the system after collision the same as the total momentum before?
answer/question/discussion: ->->->->->->->->->->->-> :
P(Before) = 60g * 80 cm/s = 4800 g * cm/s
p(After) = 60g*50 cm/s + 20g * 70 cm/s = 4400 g * cm/s
Toital momentum after is less thean the initial momentum.
#$&*
*#&!
&#Very good responses. Let me know if you have questions. &#