A person of mass 80 kg stands at the center of a rotating merry-go-round platform of radius 2.6 m and moment of inertia 840 kg⋅m2 . The platform rotates without friction with angular velocity 0.85 rad/s . The person walks radially to the edge of the platform. Calculate the angular velocity when the person reaches the edge. Express your answer using three significant figures and include the appropriate units. Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk. Do not round intermediate calculations. Express your answers using two significant figures. Enter your answers numerically separated by a comma, using KEi, KEf = _________ J
A person of mass 80 kg stands at the center of a rotating merry-go-round platform of radius 2.6 m and moment of inertia 840 kg⋅m2 . The platform rotates without friction with angular velocity 0.85 rad/s . The person walks radially to the edge of the platform. Calculate the angular velocity when the person reaches the edge. Express your answer using three significant figures and include the appropriate units. Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk. Do not round intermediate calculations. Express your answers using two significant figures. Enter your answers numerically separated by a comma, using KEi, KEf = _________ J
A person of mass 80 kg stands at the center of a rotating merry-go-round platform of radius 2.6 m and moment of inertia 840 kg⋅m2 . The platform rotates without friction with angular velocity 0.85 rad/s . The person walks radially to the edge of the platform. Calculate the angular velocity when the person reaches the edge. Express your answer using three significant figures and include the appropriate units. Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk. Do not round intermediate calculations. Express your answers using two significant figures. Enter your answers numerically separated by a comma, using KEi, KEf = _________ J
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A person of mass 80 kg stands at the center of a rotating merry-go-round platform of radius 2.6 m and moment of inertia 840 kg⋅m2 . The platform rotates without friction with angular velocity 0.85 rad/s . The person walks radially to the edge of the platform.
Calculate the angular velocity when the person reaches the edge.
Express your answer using three significant figures and include the appropriate units.
Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk.
Do not round intermediate calculations. Express your answers using two significant figures. Enter your answers numerically separated by a comma, using KEi, KEf = _________ J
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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