Homework Help

What will happen to the momentum of the car as sand is loaded onto it? & What will...

user profile pic

melissazamora7 | Student, Grade 11 | (Level 1) Honors

Posted November 19, 2012 at 1:17 PM via web

dislike 0 like

What will happen to the momentum of the car as sand is loaded onto it? & What will happen to the velocity of the railroad car?

Use this information to answer the next 2 questions: A railroad car runs under a funnel that loads sand onto the car as it moves.

 

What will happen to the momentum of the car as sand is loaded onto it? (I think it is either B or C) 

a. It is impossible to determine the effect on momentum from the information given.

b. The momentum will increase because of the added mass

c. The momentum will stay the same. The extra mass will be compensated for by the loss of velocity

d. The momentum will decrease because the car will move more slowly.


What will happen to the velocity of the railroad car? (I think it is C or D) 
 
a.The velocity will decrease because of the increased mass.
b.It is impossible to predict the effect on the velocity from the information given.
c.The velocity will increase to compensate for the added mass.
d.The velocity will remain the same as the car is loaded with sand.

Please help! :) 

1 Answer | Add Yours

user profile pic

radwolfsdragon | Student, Undergraduate | eNotes Newbie

Posted November 21, 2012 at 7:26 AM (Answer #1)

dislike 0 like
for the first question, it is C. for the second question, it is A.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes