/sci/ - Science & Math » Thread #11521225

157KiB, 960x960, 1584697546415.jpg

View Same Google iqdb SauceNAO

Anonymous Wed 01 Apr 08:24:57 2020 No.11521225 View Reply Original Report

Quoted By: >>11521334

Just a quick question.
If I were to throw something that weighed 100g at a wall but during its flight the weight magically turned to 10kg. What would change? Would the wall get hit ''harder''?
I'm quite a brainlet but I've been thinking about this for the last day and I've no one to really ask about such things.

Anonymous

Anonymous Wed 01 Apr 2020 08:52:51 No.11521322 Report

Quoted By:

This scenario is possible if you choose to conserve momentum. You can't have both conservation of momentum and conservation of energy in this instance, so we must choose conservation of momentum, and allow for energy to be dissipated in its magic transformation. This is an inelastic collision seen in intro physics textbooks. The mass would slow down a hundredfold, and because it slowed down, the average force imparted on the wall would be smaller (as the collision with the wall takes much longer).

Anonymous

Anonymous Wed 01 Apr 2020 08:55:28 No.11521334 Report

Quoted By:

>>11521225
>magically
Since you introduced that word, everything can happen. However, let's assume that energy gets conserved: in that case the projectile will slow down as its mass increases, hitting exactly with the same force. If instead the projectile magically increases its energy with its mass, by not having its velocity affected as it changes mass, then yes, it will hit harder.

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Your latest searches