× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
r
4
L
4
3
d
3
M
3
l
3
V
3
s
3
d
3
a
3
g
3
j
3
New Topic  
ppk ppk
wrote...
Valued Member
On Hiatus
Posts: 3560
12 years ago
A freight car moves along a frictionless level railroad track at constant speed.  The freight car is open on top.  A large load of coal is suddenly dumped into the car.  What happens to the speed of the freight car?
A) It increases.
B) It remains the same.
C) It decreases.
D) It becomes zero.
E) Cannot be determined from the information given.
Read 3178 times
1 Reply

Related Topics

Replies
wrote...
Educator
12 years ago
C
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1595 People Browsing
Related Images
  
 302
  
 241
  
 272
Your Opinion
How often do you eat-out per week?
Votes: 81

Previous poll results: What's your favorite math subject?