Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
7.18 The escape speed of a projectile on the earth's surface is
11.2
k
m
s
−
1
11.2 \mathrm{~km} \mathrm{~s}^{-1}
11.2
km
s
−
1
. A body is projected out with thrice this speed. What is the speed of the body far away from the earth? Ignore the presence of the sun and other planets.
Browse the problem library