Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
Show that when a particle of mass
m
1
m_{1}
m
1
moving with speed
u
u
u
collides head-on and sticks to a stationary particle of mass
m
2
m_{2}
m
2
, the fraction of the initial kinetic energy that is lost is
m
2
m
1
+
m
2
\dfrac{m_{2}}{m_{1}+m_{2}}
m
1
+
m
2
m
2
.
Browse the problem library