What is the speed of the second ball after the collision?

AI Thread Summary
In an elastic collision involving two equal mass billiard balls, the first ball traveling at 4.0 m/s comes to a complete stop after the collision. The second ball, initially at rest, will then move with the same speed as the first ball before the collision, which is 4.0 m/s. The relevant equation to use for this scenario is the conservation of momentum, specifically p_initial = p_final. This principle states that the total momentum before the collision equals the total momentum after the collision. Understanding this concept is crucial for calculating the speed of the second ball independently.
Luvs_Mariah_C
Messages
3
Reaction score
0
A billiard ball traveling at 4.0 m/s has an elastic head-on collision with a billiard ball of equal mass that is initially at rest. The first ball is at rest after the collision. What is the speed of the second ball after the collision?

What equation should i use? Please post.
 
Physics news on Phys.org
Thanks...but

That shows me the anser, I'm looking for the equation to find the answer myself. Thank you anyways.
 
Look again.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Thread 'Egg Drop Challenge! Need ideas for winning designs'

I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
View full post »

Similar threads

Collision between snooker balls
Replies
3
Views
751
Ambiguous question on momentum and how it works...
Replies
13
Views
1K
Vertical Wall approaching Man - Impulse and Momentum Conservation
Replies
10
Views
975
How to Calculate Speed of Head of Driver After Collision?
Replies
10
Views
2K
How Do You Solve for Final Velocities in Elastic Collisions?
Replies
20
Views
2K
Solving the Elastric 3-Body Collision Problem
Replies
2
Views
2K
Why momentum of a ball bounced off a wall increases twice fold?
Replies
9
Views
4K
Speed of charged balls after collision
Replies
13
Views
1K
Work done during a collision -- Change in Kinetic Energy & change in Momentum
Replies
1
Views
2K
Coefficient of Restitution for a Hypothetical Collision where masses are not equal after the collision compared to before the collision
Replies
6
Views
1K

Hot Threads

Recent Insights

Back
Top