Option A is correct
Increasing in speed is an example of angular momentum conservation. As no net external torque on the system so angular momentum would conserved
6. A figure skater is spinning slowly with arms outstretched. She brings her arms in close...
A figure skater is spinning slowly with arms outstretched. She brings her arms in close to her body and her moment of inertia decreases by 12. By what factor does her rotational Kinetic energy change?
An ice skater spinning with outstretched arms has an angular speed of 5.0rad/s . She tucks in her arms, decreasing her moment of inertia by 29% . What is the resulting angular speed? rad/s By what factor does the skater's kinetic energy change? (Neglect any frictional effects.) where does the extra kinetic energy come from?
1. An ice skater is spinning about a vertical axis with her arms fully extended. If her arms are pulled in closer to her body, in which of the following ways are the angular momentum and kinetic energy of the skater affected? Angular Momentum- Kinetic Energy A) Increases-Increases B) Increases-Remains constant C) Remains constant- Increases D) Remains constant-Remains constant
(a) What is the angular momentum of a figure skater spinning (with arms in close to her body) at 2.0 rev/s, assuming her to be a uniform cylinder with a height of 1.5 m, a radius of 16 cm, and a mass of 55 kg. _______ kg·m2/s (b) How much torque is required to slow her to a stop in 5.0 s, assuming she does not move her arms? _______ m·N
A spinning skater draws in her outstretched arms thereby reducing her moment of inertia by a factor of 3. Determine the ratio of her final kinetic energy to her initial kinetic energy.
Part A What is the angular momentum of a figure skater spinning at 2.8 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m. a radius of 15 cm. and a mass of 48 kg ? Express your answer using two significant figures. Part B How much torque (in magnitude) is required to slow her to a stop in 4.8 s. assuming she does not move her arms? Express your answer using two...
What is the angular momentum of a figure skater spinning at 3.5 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.6 m , a radius of 13 cm, and a mass of 60 kg? B.) How much torque is required to slow her to a stop in 5.8 s, assuming she does not move her arms?
Points:2 What is the angular momentum of a figure skater spinning (with arms in close to her body) at 3.38 evolutions per second, assuming her to be a uniform cylinder with a height of 1.31 m, a radius of 13.8 cm, and a mass of 56.5 kg. 11.4 kg*m 2/s Your receipt no. is 158-7050 Previous Tries How much torque is required to slow her to a stop in 4.54 s, assuming she does not move her arms? You are...
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?
A figure skater is spinning at a rate of 0.80 revolutions per second with her arms close to her chest. She then extends her arms outwards and her new rotational frequency is 0.40 revolutions per second. What is ratio of her new moment of inertia to her original moment of inertia?