A figure skater rotating at 5.00 rad/s with arms extended had a moment of inertia of 2.25 kg·m^2. If he pulls in his arms so his moment of inertia decreases to 1.80 kg·m^2, what will be his new angular speed?
A) 2.25 rad/s
B) 6.25 rad /s
C) 0.81 rad/s
D) 4.60 rad/s
Afigure skater rotating at 5.00 rad/s with arms extended had amoment of inertia of...
A figure skater rotating at 1,8 rad/s with arms extended has a moment of inertia of 1,35 kg∙m2. If the arms are pulled in so the moment of inertia decreases to 1,94 kg∙m2, what is the final angular speed? Answer in two decimal places.
6. a) A 4.0-kg block starts from rest on the positive z axis 5.0 m from the origin and thereafter has an acceleration given by À = 3i+5k in m's? Find its angular momentum at the end of 3.0 s about the origin: b) A figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg. m2. If the arms are pulled in so the moment of inertia decreases to 1.80 kg • m2,...
A student sits on a rotating stool holding two 2.9-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg · m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.45 m from the rotation axis. (a) Find the new angular speed of the...
A student sits on a freely rotating stool holding two weights, each of mass 4 kg.. When his arms are extended horizontally, the weights are 1.1 m from the axis of rotation and he rotates with an angular speed of 0.9 rad/s. The moment of inertia of the student plus stool is 3.0 kg-m2 and is assumed to be constant. The student pulls the weights inward horizontally to a position 0.4 m from the rotation axis. Find the new angular...
A student sits on a rotating stool holding two 3.2-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg · m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.23 m from the rotation axis. a. Find the new angular speed of the...
A student sits on a rotating stool holding two2.7-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg
A skater has a moment of inertia of 4kg.m2 when both her arms are outstretched rotating at 60 rpm. When she draws her arms in her moment of inertia drops to 0.8kg.m2 . What is her angular momentum and new speed of rotation in rpm?
As an ice skater begins a spin, his angular speed is 3.37 rad/s. After pulling in his arms, his angular speed increases to 5.74 rad/s. A)Find the ratio of the skater's final moment of inertia to his initial moment of inertia.
3. An ice skater starts spinning at a rate of 2.0 rev/s with their arms extended. They then pull their arms in toward their body reducing their moment of inertia by ¼, what is the angular velocity of the skater with their arms pulled in?
A skater has a moment of inertia of 100 kg . m^2 when his arms are outstretched and a moment of inertia of 75 kg . m^2 when his arms are tucked in dose to his chest. If he starts to spin at an angular speed of 2.0 rps (revolutions per second) with his arms outstretched, what will his angular speed be when they are tucked in?