Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
A train accelerates from
30
m
/
s
30 \mathrm{~m} / \mathrm{s}
30
m
/
s
to
50
m
/
s
50 \mathrm{~m} / \mathrm{s}
50
m
/
s
in 10 s . Find at what time
t
t
t
(before the end) it covers half of the total distance. Reason whether this
t
t
t
is less than or greater than 5 s.
Browse the problem library