Kinematics
07 February 2022 17:18
What is kinematics?
Kinematics is the study of motion and its cause.
Some of the important terms related to Kinematics are
Distance
Distance is defined as the actual length covered by a body in
motion. Its SI unit is meter(m).
Displacement
Displacement is defined as the shortest paths between
initial position and the final position. Its SI unit is meter(m).
What is the difference between Distance and Displacement?
Distance Displacement
It is actual distance covered. It the shortest distance
It is a scalar quantity i.e. it consists It is a vector quantity i.e. it consists
only of magnitude. of both magnitude and direction.
BONUS POINTS
The distance covered by a body is always equal to or greater than the
displacement.
The distance and displacement will be equal only if the particle travels
through the shortest way.
AB ≠BA because in AB , A is the initial position and b is the ending position
while in BA, B is the initial position and A is the ending position.
Speed
Speed is defined as the distance covered per unit time.
𝑆𝑝𝑒𝑒𝑑 =
Therefore, unit of speed = m/s
Speed is of two types
Uniform speed
When an object covers equal distance in equal amount of time, this is known as uniform
speed.
Non Uniform Speed
When an objects covers unequal distance in equal amount of time, this is known as non
uniform speed.
07 February 2022 17:18
What is kinematics?
Kinematics is the study of motion and its cause.
Some of the important terms related to Kinematics are
Distance
Distance is defined as the actual length covered by a body in
motion. Its SI unit is meter(m).
Displacement
Displacement is defined as the shortest paths between
initial position and the final position. Its SI unit is meter(m).
What is the difference between Distance and Displacement?
Distance Displacement
It is actual distance covered. It the shortest distance
It is a scalar quantity i.e. it consists It is a vector quantity i.e. it consists
only of magnitude. of both magnitude and direction.
BONUS POINTS
The distance covered by a body is always equal to or greater than the
displacement.
The distance and displacement will be equal only if the particle travels
through the shortest way.
AB ≠BA because in AB , A is the initial position and b is the ending position
while in BA, B is the initial position and A is the ending position.
Speed
Speed is defined as the distance covered per unit time.
𝑆𝑝𝑒𝑒𝑑 =
Therefore, unit of speed = m/s
Speed is of two types
Uniform speed
When an object covers equal distance in equal amount of time, this is known as uniform
speed.
Non Uniform Speed
When an objects covers unequal distance in equal amount of time, this is known as non
uniform speed.
