NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Rotational Motion
NEET · Physics · Rotational Motion
Two discs of moments of inertia I 1 and I 2 about their respective...
Two discs of moments of inertia I1and I2about their respective axes (normal to the disc and passing through the centre), and rotating with angular speed ω1and ω2are brought into contact face to face with their axes of rotation coincident.Calculate the loss in kinetic energy of the system in the process.
Options
- A{{\left( {{\omega }_{1}}+{{\omega }_{2}} \right)}^{2}}
- B{{\left( {{\omega }_{1}}+{{\omega }_{2}} \right)}^{2}}
- C{{\left( {{\omega }_{1}}-{{\omega }_{2}} \right)}^{2}}
- D{{\left( {{\omega }_{1}}-{{\omega }_{2}} \right)}^{2}}
Correct answer
C. {{\left( {{\omega }_{1}}-{{\omega }_{2}} \right)}^{2}}
Step-by-step solution
Correct Option is : (C)
{{\left( {{\omega }_{1}}-{{\omega }_{2}} \right)}^{2}}
{{\left( {{\omega }_{1}}-{{\omega }_{2}} \right)}^{2}}