Rotational energy transfer
A wheel with I=0.40 kg m^2 slows from 10 to 6 rad/s. Rotational K=(1/2)I omega^2.
- Initial K=20 J.
- Final K=7.2 J.
- The difference leaves the wheel as thermal energy or work.
123
03
CHALLENGE MISSIONforces, momentum, energy, torque, and rotation
forces, momentum, energy, torque, and rotation
How much rotational kinetic energy is lost?
MODELMotion Dynamics Board
PHYS
PROVEChoose with evidence
CLUE
Pause. Find what matters. Then make your move.