An object of mass m1 = m and an object of mass m2 = 2m move around a rotation axis A in parallel circles of radii r1 = 2r and radii r2 = r, with tangential speeds v1 = 2v and v2 = v, as shown. As they rotate, forces of equal magnitude are applied opposite to their velocities to stop them. Which statement is correct? m2 will stop first because it has the smaller initial tangential speed Both objects will stop at the same time because their angular speeds are equal at all times m2 will stop first because it has the smaller radius m2 will stop first because it has a smaller moment of inertia m1 will stop first because it has the smaller initial angular velocity m1 will stop first because the torque on it is greater
An object of mass m1 = m and an object of mass m2 = 2m move around a rotation axis A in parallel circles of radii r1 = 2r and radii r2 = r, with tangential speeds v1 = 2v and v2 = v, as shown. As they rotate, forces of equal magnitude are applied opposite to their velocities to stop them. Which statement is correct? m2 will stop first because it has the smaller initial tangential speed Both objects will stop at the same time because their angular speeds are equal at all times m2 will stop first because it has the smaller radius m2 will stop first because it has a smaller moment of inertia m1 will stop first because it has the smaller initial angular velocity m1 will stop first because the torque on it is greater
An object of mass m1 = m and an object of mass m2 = 2m move around a rotation axis A in parallel circles of radii r1 = 2r and radii r2 = r, with tangential speeds v1 = 2v and v2 = v, as shown. As they rotate, forces of equal magnitude are applied opposite to their velocities to stop them. Which statement is correct? m2 will stop first because it has the smaller initial tangential speed Both objects will stop at the same time because their angular speeds are equal at all times m2 will stop first because it has the smaller radius m2 will stop first because it has a smaller moment of inertia m1 will stop first because it has the smaller initial angular velocity m1 will stop first because the torque on it is greater
An object of mass m1 = m and an object of mass m2 = 2m move around a rotation axis A in parallel circles of radii r1 = 2r and radii r2 = r, with tangential speeds v1 = 2v and v2 = v, as shown. As they rotate, forces of equal magnitude are applied opposite to their velocities to stop them.
Which statement is correct?
m2 will stop first because it has the smaller initial tangential speed
Both objects will stop at the same time because their angular speeds are equal at all times
m2 will stop first because it has the smaller radius
m2 will stop first because it has a smaller moment of inertia
m1 will stop first because it has the smaller initial angular velocity
m1 will stop first because the torque on it is greater
Transcribed Image Text:2v
2m
Definition Definition Rate of change of angular displacement. Angular velocity indicates how fast an object is rotating. It is a vector quantity and has both magnitude and direction. The magnitude of angular velocity is represented by the length of the vector and the direction of angular velocity is represented by the right-hand thumb rule. It is generally represented by ω.
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