Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
In one-dimensional motion
PHYSICS · Single correct · CBSE · Physics · Motion · Motion
Problem
In one-dimensional motion, the displacement
Δ
x
\Delta x
Δ
x
of a particle is best described as (a)
Δ
x
=
∣
x
2
−
x
1
∣
\Delta x = |x_2 - x_1|
Δ
x
=
∣
x
2
−
x
1
∣
(magnitude only, no sign) (b)
Δ
x
=
x
2
−
x
1
\Delta x = x_2 - x_1
Δ
x
=
x
2
−
x
1
(keeping sign) (c)
Δ
x
=
x
1
+
x
2
2
\Delta x = \dfrac{x_1 + x_2}{2}
Δ
x
=
2
x
1
+
x
2
(average of the two positions) (d)
Δ
x
=
x
1
−
x
2
\Delta x = x_1 - x_2
Δ
x
=
x
1
−
x
2
(reverse order)
Related theory
Position, Displacement & Vector Equality
Distance, velocity and acceleration
Motion in a straight line
Speed, velocity and acceleration
Distance and displacement
Motion
Browse the problem library