Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
The vertical displacement of a point on a vibrating string is
s
(
t
)
=
4
sin
(
π
t
)
s(t)=4\sin(\pi t)
s
(
t
)
=
4
sin
(
π
t
)
centimetres, where
t
t
t
is in seconds. Find the instantaneous velocity at
t
=
1
2
t=\dfrac{1}{2}
t
=
2
1
s. a)
4
π
4\pi
4
π
cm/s b)
0
0
0
cm/s c)
8
8
8
cm/s d)
−
4
π
-4\pi
−
4
π
cm/s
Browse the problem library