60 693
Assignments Done
97,8%
Successfully Done
In April 2018

Answer to Question #17436 in Mechanics | Relativity for hugyu

Question #17436
A bullet moving with a speed 'v' can just penetrate two planks of equal thickness. Find the number of such planks that the bullet will penetrate if its speed is doubled.
Expert's answer
The energy of the bullet will increase
N =& (m(2V)²/2) / (mV²/2) = (2V)² / V² = 4

times if its speed is doubled. So, the bullet will penetrate 4 times more planks, that is

M = 2*4 = 8

such planks.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions