Class 11PhysicsSystem of Particles and Rotational MotionRotation Motion Basic, Motion of Connected Mass
MediumWhat is rotational motion? Explain it with an example.
(N/A) Rotational motion is defined as the motion of a rigid body in which all its constituent particles move along circular paths,and the centers of all these circular paths lie on a fixed straight line known as the axis of rotation.
Key characteristics:
$1$. Every particle of the body moves in a circle.
$2$. The centers of these circles are collinear,forming the axis of rotation.
$3$. The axis of rotation may be fixed or moving.
Example:
Consider a ceiling fan. When it rotates,every point on the blades moves in a circular path around a central vertical axis. Since the centers of all these circular paths lie on the rod (the axis of rotation),this is a classic example of rotational motion. Other examples include a potter's wheel,a spinning top,and a merry-go-round.
Key characteristics:
$1$. Every particle of the body moves in a circle.
$2$. The centers of these circles are collinear,forming the axis of rotation.
$3$. The axis of rotation may be fixed or moving.
Example:
Consider a ceiling fan. When it rotates,every point on the blades moves in a circular path around a central vertical axis. Since the centers of all these circular paths lie on the rod (the axis of rotation),this is a classic example of rotational motion. Other examples include a potter's wheel,a spinning top,and a merry-go-round.
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