Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
In a perfectly elastic collision between two identical smooth spheres of equal mass in which one sphere is initially at rest, the angle between their directions of motion immediately after the collision is a)
60
∘
60^{\circ}
6
0
∘
b)
180
∘
180^{\circ}
18
0
∘
c)
90
∘
90^{\circ}
9
0
∘
d)
45
∘
45^{\circ}
4
5
∘
Browse the problem library