Question

describe the motion in one dimension. describe the physical quantities that describe the one dimension.

Answer 1

Motion in one dimension is, motion along a straight line or motion in a particular direction.

For eg: 1) A person running on a straight track.

2) A ball thrown vertically upwards

Physical quantities are,

1) Displacement: Shortest distance between final and initial points of motion. It's unit is meter (m)

2) Velocity: Rate of change of dispalcement

Unit is meter per second. (m/s)

$Velocity =\frac{displacement}{time}$

3) Time: Time taken for the motion. Unit is seconds(s)

4) Acceleration: Rate of change of velocity. Unit is meter per second square. ($m/s^2)$