Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
A particle travels first half of the total time with speed
v
1
v_1
v
1
and second half time with speed
v
2
v_2
v
2
. Find the average speed during the complete journey.
Browse the problem library