Inelastic Collision and Conservation of Momentum

Click For Summary
SUMMARY

The discussion focuses on a ballistic pendulum experiment to determine the initial speed of a projectile using conservation of momentum and energy principles. The experiment involves a bullet with a mass of 64 g colliding with a pendulum bob of 889 g, which rises to a maximum height of 3 cm and subtends an angle of 36.9 degrees. The acceleration due to gravity is given as 9.8 m/s². By applying the conservation of momentum during the inelastic collision and the conservation of energy to find the initial speed of the bullet, the solution can be derived definitively.

PREREQUISITES
  • Understanding of conservation of momentum in inelastic collisions
  • Knowledge of conservation of energy principles
  • Familiarity with projectile motion and pendulum dynamics
  • Basic algebra for solving equations
NEXT STEPS
  • Calculate the initial speed of the projectile using the formula derived from conservation of momentum
  • Explore the relationship between height and potential energy in pendulum systems
  • Investigate the effects of varying mass ratios on inelastic collisions
  • Learn about ballistic pendulum design and its applications in physics experiments
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and energy conservation, as well as educators looking for practical examples of inelastic collisions and momentum conservation in action.

mexicandeligh
Messages
1
Reaction score
0

Homework Statement


A student performs a ballistic pendulum experiment using an apparatus similar to that shown it the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swingin point). After the bullet hits the block, the block rises to its highest position, see dashed block in the figure, and continues swinging back and forth.
The following data is obtained:
the maximum height of the pendulum rises 3 cm,
at the maximum height the pendulum subtends an angle of 36.9,
the mass of the bullet is 64 g, and
the mass of the pendulum bob is 889 g.
The acceleration of gravity is 9.8 m/s^2
Determine the initial speed of the projectile
Answer in units of m/s
 
Physics news on Phys.org
Have you tried it? Try using conservation of energy and momentum.
 

Similar threads

Fast and Furious Scene Analysis
  • · Replies 47 ·
2
Replies
47
Views
4K
Physics problem - Momentum and energy
  • · Replies 25 ·
Replies
25
Views
3K
Linear Motion and Linear Momentum
  • · Replies 31 ·
2
Replies
31
Views
4K
Potential Energy - 2D inelastic collision - ballistic pendulum
  • · Replies 10 ·
Replies
10
Views
3K
Why is momentum conservation always true in a collision?
  • · Replies 4 ·
Replies
4
Views
2K
Linear momentum problem (ballistic pendulum)
  • · Replies 2 ·
Replies
2
Views
4K
The Conservation of Momentum in a Completely Inelastic Collision.
  • · Replies 3 ·
Replies
3
Views
2K
A bullet collides perfectly elastically with one end of a rod
  • · Replies 21 ·
Replies
21
Views
3K
Hinged rod rotating, falling and hitting a mass
  • · Replies 11 ·
Replies
11
Views
3K
Conservation of Momentum Problem - Mechanical and Kinetic Energies
  • · Replies 2 ·
Replies
2
Views
1K