Top Posters
Since Sunday
j
6
a
6
w
5
b
5
s
5
d
5
p
5
T
5
b
5
B
4
s
4
M
4

# A ball bearing rolls along a smooth horizontal tabletop and crashes head-on into a second, ...

wrote...
Posts: 129
Rep:
2 weeks ago

A ball bearing rolls along a smooth horizontal tabletop and crashes head-on into a second, stationary ball bearing of half its mass. If both ball bearings roll in the x-direction only (either positive or negative) and the initially stationary ball is observed to have a velocity of +2.4 m/s after the collision, what is the velocity of the first ball after the collision? Assume the collision is elastic.

−2.4 m/s

+2.4 m/s

−1.2 m/s

+1.2 m/s

−0.6 m/s

+0.6 m/s

Textbook

## College Physics

Edition: 5th
Author:
Replies
Answer verified by a subject expert
ahgoebelahgoebel
wrote...
Posts: 132
Rep:
2 weeks ago

### Related Topics

salonijainnn Author
wrote...

2 weeks ago
wrote...

Yesterday
 This calls for a celebration
wrote...

2 hours ago
 Thank you, thank you, thank you!
Explore
753 People Browsing
177 Signed Up Today
Related Images

291

227

694