Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
7. A rock is thrown upward with an initial velocity,
v
(
t
)
v(t)
v
(
t
)
, of
18
m
/
s
18 \mathrm{~m} / \mathrm{s}
18
m
/
s
from a height,
h
(
t
)
h(t)
h
(
t
)
, of 45 m . If the acceleration of the rock is a constant
−
9
m
/
s
2
-9 \mathrm{~m} / \mathrm{s}^{2}
−
9
m
/
s
2
, find the height of the rock at time
t
=
4
t=4
t
=
4
.
Browse the problem library