Collisions question? (involving momentum)

AI Thread Summary
A 3.45 g ball collides with a stationary 5.82 g ball, initially moving at 45 m/s. After the collision, the first ball bounces off at a 36-degree angle with a velocity of 28 m/s. The discussion seeks to determine the magnitude and direction of the second ball's velocity post-collision and whether the collision is elastic. Participants are encouraged to share their calculations and insights to solve the problem. The focus remains on applying momentum principles to analyze the collision dynamics.
driftk
Messages
4
Reaction score
0
I've been trying solve this problem for a long time but can't figure it out.

A 3.45 g ball is moving toward a stationary 5.82 g ball with a velocity of 45 m/s. The first ball bounces off at an angle of 36 degrees from its original path with a velocity of 28 m/s. What is the magnitude and direction of the velocity of the second ball after the collision? Is the collision elastic?

Thank you.
 
Physics news on Phys.org
What have you worked out so far? Let's see some workings out.

The Bob
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Ambiguous question on momentum and how it works...
Replies
13
Views
1K
Solving the Elastric 3-Body Collision Problem
Replies
2
Views
2K
How Do You Solve for Final Velocities in Elastic Collisions?
Replies
20
Views
2K
Work done during a collision -- Change in Kinetic Energy & change in Momentum
Replies
1
Views
2K
Conservation of Momentum involving Vf, elastic collisions
Replies
6
Views
1K
Angular momentum conservation in collision with a nail
Replies
9
Views
2K
Elastic collision -- Energy & Momentum
Replies
16
Views
2K
Golf club 🏌️and ball ⛳ impulse problem
Replies
19
Views
2K
Perfectly inelastic collision of two moving and rotating disks
Replies
9
Views
2K
Question about Momentum and Collisions
Replies
6
Views
1K

Hot Threads

Recent Insights

Back
Top