Questions and Answers
What is the fundamental difference between linear motion and rotational motion?
Linear motion involves movement along a straight path, while rotational motion involves movement around a fixed point or axis.
What is the angular displacement of an object that rotates from 30° to 90°?
60° or $\frac{\pi}{3}$ rad
An object rotates with an angular velocity of 2 rad/s. What is its angular acceleration if it increases its angular velocity to 4 rad/s in 2 seconds?
1 rad/s²
A point on the edge of a rotating wheel has a tangential speed of 10 m/s. If the radius of the wheel is 2 meters, what is its angular velocity?
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What is the centripetal acceleration of an object moving in a circular path with a radius of 3 meters and an angular velocity of 2 rad/s?
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What is the moment of inertia of a rod of length 1 meter and mass 2 kg, rotating about its center?
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An object is rotating with an angular velocity of 3 rad/s. If its angular velocity decreases to 2 rad/s in 4 seconds, what is its average angular acceleration?
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What is the angular displacement of an object that rotates from 0° to 360°?
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A wheel has a moment of inertia of 5 kg m². What is its resistance to changes in its rotational motion?
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What is the axis of rotation of a spinning top?
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