- #1
Rongeet Banerjee
- 45
- 6
- Homework Statement
- A drum rolls down without slipping on an inclined plane.The frictional force:
1.converts translational energy to Rotational Energy
2.dissipates energy as heat
3.decreases Rotational motion
4.decreases both rotational and translational motion
- Relevant Equations
- Rotational Kinetic Energy= 1/2 *I*omega²
Translational Kinetic Energy= 1/2 *mv²
Friction provides the necessary torque for rolling without slipping.So Rotational Energy must increase.Simultaneously acceleration of centre of mass down the inclined plane is positive so Translational energy also must increase.Overall The Gravitational Potential Energy is getting converted to Kinetic Energy.Option 2 is the best option by my knowledge,but again my textbook contradicts my reason.It says option 1 is correct .Please explain