What is meant by rotational motion ? How is it different from translation motion?
Give few examples of rotational motion.
Answers
Translational Motion: Translational motion is motion that involves the sliding of an object in one or more of the three dimensions: x, y or z. But an object can still be moving even when it's just sitting at a particular x-, y- and z-coordinate, it can still spin.
Rotational Motion: Rotational motion is where an object spins around an internal axis in a continuous way. An ice-skater can do this by spinning on the spot. She will give herself rotational energy. And because energy is always conserved and a smaller object must spin faster to have the same energy, when she moves her arms in towards her body, her rotation speed will increase - the spinning will get faster and faster.
Definition:
A rigid body performs a real rotational motion if each particle of the body moves in a circle, and the center of all circles lies on the straight line (axis of rotation).
As shown in the figure disc is performing rotational motion as all particles are rotating about a common axis i.e. axis of rotation.
Examples:
1. Rotation of ceiling fan.
2. Rotation of blades of a windmill.
3. Rotation of wheels of a car.
Answer:
\small \underline {\sf{TRANSLATIONAL \ AND \ ROTATIONAL \ MOTION \ - \ DEFINITION }}
TRANSLATIONAL AND ROTATIONAL MOTION − DEFINITION
Translational Motion: Translational motion is motion that involves the sliding of an object in one or more of the three dimensions: x, y or z. But an object can still be moving even when it's just sitting at a particular x-, y- and z-coordinate, it can still spin.
Rotational Motion: Rotational motion is where an object spins around an internal axis in a continuous way. An ice-skater can do this by spinning on the spot. She will give herself rotational energy. And because energy is always conserved and a smaller object must spin faster to have the same energy, when she moves her arms in towards her body, her rotation speed will increase - the spinning will get faster and faster.
\small \underline {\sf{ROTATIONAL \ MOTION - DEFINITION \ < /p > < p > concept < /p > < p > }}
ROTATIONAL MOTION−DEFINITION </p><p>concept</p><p>
Definition:
A rigid body performs a real rotational motion if each particle of the body moves in a circle, and the center of all circles lies on the straight line (axis of rotation).
As shown in the figure disc is performing rotational motion as all particles are rotating about a common axis i.e. axis of rotation.
Examples:
1. Rotation of ceiling fan.
2. Rotation of blades of a windmill.
3. Rotation of wheels of a car.