All Questions
Tagged with collision conservation-laws
442
questions
1
vote
3
answers
76
views
Conservation of linear vs. angular momentum in two similar cases
I have a question that eludes my understanding:
Imagine we have a bullet of mass $m$ and a rigid pendulum with a bob of mass $M$ hanging from a rigid rod of negligible mass hanging from the ceiling ...
0
votes
0
answers
39
views
Idealized Newton's cradle
I was wondering about the conditions for an ideal newtons cradle.
Under regular circumstances, the collisions are inelastic and a newton's cradle dissipates energy in various forms like heat, friction,...
1
vote
1
answer
69
views
How do you solve instantaneous 3 body collisions
A few years ago I built myself a very basic python program that did some very basic collision mechanics between particles with a mass and velocity and it was helpful in learning a few things and ...
- 111
2
votes
3
answers
81
views
Do bodies stick together after an inelastic oblique collision?
My question is particularly about an oblique collision case. (For example a body having velocity along x axis approaching another with velocity along y axis) From what I know, in perfectly inelastic ...
- 41
3
votes
2
answers
85
views
Why do basketballs with more air in them bounce more than ones with less air?
I thought it this because more air means more pressure, so there will be more pressure when the ball is deformed and it will gain more kinetic energy as it rebounds. However, some sources say that ...
- 539
-1
votes
1
answer
36
views
Momentum conservation and collisions [duplicate]
Whenever a collision happens on a rough horizontal surface, because the frictional force will be external to the system, momentum wont be conserved. However, can we consider the friction to be ...
0
votes
0
answers
41
views
Why does a ball bounce off the wall? [duplicate]
When we throw a ball onto a wall, the ball comes in contact with the wall. And the velocity of the ball comes from V m/s to 0m/s. According Newton’s first law, a force was acted on the ball by the ...
- 21
0
votes
1
answer
26
views
What happens if an object hits stationary objects on a pulley?
What happens if an object with speed $v_i$ and mass $m$ hits two bodies of equal mass (also $m$) on a frictionless pulley at rest, and the colliding body sticks to one of the bodies on the pulley?
I ...
- 103
0
votes
1
answer
43
views
Conservation of Momentum in particle splitting. Is it always conserved?
Let an intially stationary particle $A$ of mass $m$, if $A$ explodes such that it breaks into 2 equal pieces.(Assume no heat or sound energy loss)
The red point is supposed be the point at which the ...
- 367
0
votes
2
answers
141
views
Prove coefficient of of restiution is 1 for perfectly elastic collisions
From my understanding, the coefficient of restitution, $e$, between two colliding particles, $A$ and $B$ is given by: $$ -e = \frac{ \left( \vec{v_A} - \vec{v_B} \right) \cdot \hat{I} }{ \left( \vec{...
0
votes
0
answers
28
views
Conservation of linear momentum not giving right result for colliosion of lighter body with heavier body [duplicate]
In collision momentum always remains conserved that is total initial momentum is equal to total final momentum. Now suppose first object is ball and the second object is very very heavy like a floor. ...
1
vote
3
answers
94
views
Can't understand inelastic collisions
In inelastic collisions, the kinetic energy of the system is not conserved however momentum is still conserved.
How is this possible?
If momentum is conserved than we can write the following equation:
...
- 21
0
votes
1
answer
21
views
Two bodies that collided inelastically and rebounded [closed]
I can't find the solution to this problem.
0
votes
1
answer
40
views
Ball collisions
When two balls collide directly, the impulse of the collision acts along the line of centers, so the momentum along this direction is not conserved. Therefore, I can only use the conservation of ...
- 75
0
votes
1
answer
92
views
Conservation of energy/momentum doubt in bullet embedding into block
A bullet of mass 10$\,$g travels horizontally with speed of 100$\,$m/s and is absorbed by a wooden block of mass 990$\,$g suspended by a string. Find the vertical height through which the block rises, ...
- 21