Suppose a child swings around her straight arm about her shoulder joint at an angular velocity of 13 rad/s. If her arm is 40. 0 cm long, what is the speed of her hand?.

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04-11-2022
Physics

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Suppose a child swings around her straight arm about her shoulder joint at an angular velocity of 13 rad/s. If her arm is 40. 0 cm long, what is the speed of her hand?.

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ArunVenu252 ArunVenu252 · Answer 1 · 2022-11-08T00:53:37-05:00

A youngster swings her 40 cm (0.4 metre) long, straight arm around her shoulder joint at a 13 rad/s angular velocity. So, her hand is moving at 5.2 m/s every second.

What exactly do linear and angular velocities mean?

The pace at which the angular location of a spinning body changes is referred to as the angular velocity. The rate at which the object's displacement changes over time while it moves in a straight line is referred to as linear velocity.

The angular velocity increases as the rotation angle increases over a particular period of time. Depending on the situation, angular velocity is expressed in degrees per second (o/s), radians per second (rad/s), or revolutions per minute (rpm). A vector quantity is angular velocity.

Because all they are is a magnitude and a direction, a vector cannot be curved. In order to represent the rotational direction, we employ the direction perpendicular to the plane.

learn more about angular velocity refer

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