Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
A force
F
=
(
3
t
i
^
+
5
j
^
)
N
\mathbf{F} = (3t\hat{i} + 5\hat{j}) \text{ N}
F
=
(
3
t
i
^
+
5
j
^
)
N
acts on a body due to which its displacement varies as
S
=
(
2
t
2
i
^
−
5
j
^
)
m
\mathbf{S} = (2t^2\hat{i} - 5\hat{j}) \text{ m}
S
=
(
2
t
2
i
^
−
5
j
^
)
m
. Work done by this force in 2 second is a. 32 J b. 24 J c. 46 J d. 20 J
Browse the problem library