The following question belongs to the topic of momentum:I = r × p what does I in the equation meanwhere;r is the position vectorp is linear momentum
Correct answer: C. Angular momentum
- A. Current
- B. Length
- C. Angular momentum
- D. Torque
- E. Displacement
Explanation
In three dimensions, the angular momentum for a point article is a pseudovector r × p, the cross product of the particle's position vector r (relative to some origin), and its momentum vector.
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Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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