A student on a piano stool rotates freely with an angular speed of 3.10 rev/s. The...
A student on a piano stool rotates freely with an angular speed of 3.10 rev/s. The student holds a 1.44-kg mass in each outstretched arm, 0.768 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.45 kgm2, a value that remains constant. As the student pulls his arms inward, his angular speed increases to 3.47 rev/s. How far are the masses from the axis of rotation at this time, considering the masses to be points?
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A student on a piano stool rotates freely with an angular speed
of 3.10 rev/s. The...
A student on a piano stool rotates freely with an angular speed of 3.05 rev/s ....
A student on a piano stool rotates freely with an angular speed of 3.05 rev/s . The student holds a 1.35 kg mass in each outstretched arm, 0.789 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.43 kg⋅m2 , a value that remains constant. a) As the student pulls his arms inward, his angular speed increases to 3.73 rev/s . How far are the masses from...
student on a piano stool rotates freely with an angular speed of 2.85 rev/s . The...
student on a piano stool rotates freely with an angular speed of 2.85 rev/s . The student holds a 1.25 kg mass in each outstretched arm, 0.739 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.53 kg⋅m2 , a value that remains constant. As the student pulls his arms inward, his angular speed increases to 3.41 rev/s . How far are the masses from the axis...
A student on a piano stool rotates freely with an angular speed of 3.07 rev/s. The...
A student on a piano stool rotates freely with an angular speed of 3.07 rev/s. The student holds a 1.27-kg mass in each outstretched arm, 0.766 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.50 kg*m2, a value that remains constant. As the student pulls his arms inward, his angular speed increases to 3.40 rev/s. How far are the masses from the axis of rotation at...
A student on a piano stool rotates freely with an angular speed of 3.05 rev/s ....
A student on a piano stool rotates freely with an angular speed of 3.05 rev/s . The student holds a 1.45 kg mass in each outstretched arm, 0.769 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.53 kg⋅m2 , a value that remains constant. PART A) As the student pulls his arms inward, his angular speed increases to 3.78 rev/s . How far are the masses...
A student on a piano stool rotates freely with an angular speed of 3.11 rev/s. The...
A student on a piano stool rotates freely with an angular speed of 3.11 rev/s. The student holds a 1.37-kg mass in each outstretched arm, 0.787 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.35 kg.m2, a value that remains constant. As the student pulls his arms inward, his angular speed increases to 3.48 rev/s. How far are the masses from the axis of rotation at...
A student on a piano stool rotates freely with an angular speed of 2.95 rev/s ....
A student on a piano stool rotates freely with an angular speed of 2.95 rev/s . The student holds a 1.35 kg mass in each outstretched arm, 0.759 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.13 kg⋅m2 , a value that remains constant. Calculate the initial kinetic energy of the system. Calculate the final kinetic energy of the system.
A student sits on a freely rotating stool holding two weights, each of which has a...
A student sits on a freely rotating stool holding two weights, each of which has a mass of 2.84kg. When his arms are extended horizontally, the weights are 0.970m from the axis of rotation and he rotates with an angular speed of 0.608rad/s. The moment of inertia of the student plus stool is 4.85kgm^2 and is assumed to be constant. The student pulls the weights inward horizontally to a position 0.200m from the rotation axis. Find the new angular speed...
3. A student sits on a freely rotating stool holding two dumbbells, each of mass 2.92...
3. A student sits on a freely rotating stool holding two dumbbells, each of mass 2.92 kg. When his arms are extended horizontally, the dumbbells are 0.95 m from the axis of rotation and the student rotates with an angular speed of 0.754 rad/s. The moment of inertia of the student plus stool is 2.69 kg · m2 and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.305 m from the rotation axis....
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.93 kg...
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.93 kg (see figure below). When his arms are extended horizontally (Figure a), the dumbbells are 0.97 m from the axis of rotation and the student rotates with an angular speed of rad/s. The moment of inertia of the student plus stool is 2.75 kg m^2 and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.291 m from the...
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.98 kg...
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.98 kg . When his arms are extended horizontally , the dumbbells are 0.96 m from the axis of rotation and the student rotates with an angular speed of 0.747 rad/s. The moment of inertia of the student plus stool is 2.62 kg · m2 and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.305 m from the rotation...
A student on a piano stool rotates freely with an angular speed of 3.11 rev/s. The student holds a 1.37-kg mass in each outstretched arm, 0.787 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.35 kg.m2, a value that remains constant. As the student pulls his arms inward, his angular speed increases to 3.48 rev/s. How far are the masses from the axis of rotation at...
3. A student sits on a freely rotating stool holding two dumbbells, each of mass 2.92 kg. When his arms are extended horizontally, the dumbbells are 0.95 m from the axis of rotation and the student rotates with an angular speed of 0.754 rad/s. The moment of inertia of the student plus stool is 2.69 kg · m2 and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.305 m from the rotation axis....
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.93 kg (see figure below). When his arms are extended horizontally (Figure a), the dumbbells are 0.97 m from the axis of rotation and the student rotates with an angular speed of rad/s. The moment of inertia of the student plus stool is 2.75 kg m^2 and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.291 m from the...
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