Momentum: Mass & Velocity - Get Answer to 2dHW

AI Thread Summary
The discussion revolves around a homework problem related to momentum, specifically focusing on the formula momentum = mass * velocity. The user initially calculates the momentum as 0.035 kg but realizes this answer is incorrect. Key points highlight that momentum is a vector quantity and that only the eastern component of one object's momentum corresponds to the momentum of another object moving due west. The user acknowledges their oversight in understanding the vector nature of momentum. The conversation emphasizes the importance of considering directional components in momentum calculations.
Arcthor
Messages
34
Reaction score
1

Homework Statement


The problem is stated here (from brilliant.org)
http://i.imgur.com/MkWwnjT.png

Homework Equations



momentum = mass * velocity

The Attempt at a Solution


My attempt at a solution can be found here:
http://i.imgur.com/Zsco86W.jpg

I get the answer 0.035kg, but that is not an option. What am I doing wrong?
 
Physics news on Phys.org
Momentum is a vector. Only the eastern component of m2's momentum is equal to the momentum of the piece that went due west.
 
Nathanael said:
Momentum is a vector. Only the eastern component of m2's momentum is equal to the momentum of the piece that went due west.

Oh god this is embarassing, how could I miss that. Haha well thank you :)
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

Potential Energy - 2D inelastic collision - ballistic pendulum
Replies
10
Views
2K
How can I solve for buoyancy in a cylinder using the given equations?
Replies
6
Views
1K
Find velocities when a mass leaves a system of a rod with two masses
Replies
10
Views
2K
Gravitational force - point mass and circular platform
Replies
4
Views
2K
About linear and angular momentum
Replies
12
Views
2K
Solving Chain Work Problem: Find mgh | Physics Homework Help
Replies
13
Views
2K
Projectile motion thrown apple question
Replies
6
Views
2K
Angular momentum of particle about the origin
Replies
7
Views
2K
Angular momentum conservation and center of mass
Replies
1
Views
2K
Quantum - Postulate of getting specific momentum p = |A_p|^2
Replies
7
Views
777

Hot Threads

Recent Insights

Back
Top