What Happens When a Fast-Moving Cube Collides with a Stationary Ball on a Table?

  • Thread starter Thread starter Phyzix
  • Start date Start date
  • Tags Tags
    Impulse
Click For Summary
SUMMARY

The discussion centers on a physics problem involving a 5 kg stationary ball and a 0.5 kg cube colliding on a table. The cube, moving at 26 m/s, imparts an impulse calculated as 20 Newton-seconds to the ball. After the collision, the ball's velocity can be determined using conservation of momentum principles, while the kinetic energy lost during the collision can be calculated from the initial and final velocities of both objects. The trajectory of each object post-collision is also a key point of analysis.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with the concepts of impulse and momentum
  • Knowledge of kinetic energy calculations
  • Ability to analyze motion in two dimensions
NEXT STEPS
  • Study the principles of conservation of momentum in collisions
  • Learn how to calculate kinetic energy before and after collisions
  • Explore impulse-momentum theorem applications
  • Investigate projectile motion to determine landing positions
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone interested in understanding collision dynamics and energy transfer in physical systems.

Phyzix
Messages
10
Reaction score
0
10) A 5 kg ball sits motionless at the edge of a 2m long 1.2m tall table. A cube of mass 0.5kg plows into it head-on at a speed of 26m/s

There is a graph below in the attachments about the collision.



a) Determine the total impulse given to the ball. b) Determine the velocity of the ball immediately after collision. c) Determine the speed and direction of the cube immediately after collision. d) Determine the KE lost during collision. e) Determine where each of the two objects lands on the floor after collision.

a) Ft=mv Ft=.5(26) Ft=13 right?
b-e?


UPDATE: After conferring with classmates I've figured it out...no need for help =) thanks!
 

Attachments

  • physthing.JPG
    physthing.JPG
    11.6 KB · Views: 459
Last edited:
Physics news on Phys.org
Question

I have the same question. Can someone explain how to go about solving this?
thanks.
 
attempted

a) impulse = force*time. The area of the graph under the function = 20 Newtons*sec.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
5K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
13
Views
14K
Replies
7
Views
5K
Replies
2
Views
15K
  • · Replies 5 ·
Replies
5
Views
5K
Replies
7
Views
3K
  • · Replies 8 ·
Replies
8
Views
5K
Replies
3
Views
8K
Replies
6
Views
1K