Elastic collision between bowling ball and tennis ball

AI Thread Summary
In an elastic collision between a moving table-tennis ball and a stationary bowling ball, the conservation of momentum and kinetic energy principles apply. The table-tennis ball, being lighter, will bounce back with a negative velocity after the collision. The momentum of the table-tennis ball will be smaller compared to the bowling ball, while its kinetic energy will be greater due to its higher speed post-collision. The discussion emphasizes the importance of understanding the vector nature of momentum and the implications of mass differences in elastic collisions. Ultimately, the table-tennis ball has a smaller magnitude of momentum and less kinetic energy compared to the bowling ball after the collision.
bdh2991
Messages
102
Reaction score
0

Homework Statement



9.6 A table-tennis ball is thrown at a stationary bowling ball. The
table-tennis ball makes a one-dimensional elastic collision and bounces back
along the same line. Compared with the bowling ball after the collision, does
the table-tennis ball have (a) a larger magnitude of momentum and more
kinetic energy, (b) a smaller magnitude of momentum and more kinetic
energy, (c) a larger magnitude of momentum and less kinetic energy, (d) a
smaller magnitude of momentum and less kinetic energy, or (e) the same
magnitude of momentum and the same kinetic energy?

Homework Equations



p = mv
k = 1/2 m v^2

The Attempt at a Solution



please help me understand this
 
Physics news on Phys.org
You have a light moving object (tennis ball) impact and reflect from a heavy stationary object (bowling ball). Think in terms of conservation of momentum and energy. Remember, momentum is a vector so it has a magnitude and direction.
Let's say the ball was moving in the positive direction, then after the impact, its moving in the negative direction. What has to happen to conserve momentum?
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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

Question about two elastic collision formulas
Replies
6
Views
2K
Speed of charged balls after collision
Replies
13
Views
1K
Solving the Elastric 3-Body Collision Problem
Replies
2
Views
2K
Which Has More Momentum and Kinetic Energy After a Perfectly Elastic Collision?
Replies
1
Views
1K
Solving Elastic Collision of Two Balls: Theory & Solutions
Replies
15
Views
3K
Kinetic energy and momentum in an elastic collision
Replies
22
Views
3K
Elastic Collision and Momentum of Ice Skaters
Replies
16
Views
3K
Bobsled Impulse and Force -- ELASTIC collision problem
Replies
10
Views
2K
Collision with a ball spinning about its vertical axis
Replies
9
Views
2K
Problem set involving Momentum and bowling balls
Replies
11
Views
4K

Hot Threads

Recent Insights

Back
Top