The movers apply a force of 430 N to push a piano up a 2.0 m long ramp. How much work has been done when they reach the top of t
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The new rotational energy of the system(RE) =
How this is calculated?
- Distance of each astronaut from centre of mass(m)=d/2
- Moment of inertia of system
- Speed of astronauts=v
- So, angular speed,ω =
=
- Rotational energy of system=
where, ω= angular speed
What is rotational energy?
- Rotational energy or angular kinetic energy is kinetic energy due to the rotation of an object and is part of its total kinetic energy.
- Looking at rotational energy separately around an object's axis of rotation, the following dependence on the object's moment of inertia is observed
To know more about rotational energy , refer:
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