Question

The Hollow sphere of diameter 0.2m and mass 2kg is rolling on a inclined plane with velocity 0.5m/s K.E of the sphere

Answer 1

Answer:

Kinetic Energy of sphere = Translational kinetic energy + Rotational kinetic energy

=

2

1

mv

2

+

2

1

Iω

2

=

2

1

×2×(0.5)

2

+

2

1

×

3

2

mr

2

×

(0.1)

2

(0.5)

2

=0.25+0.17 J

=0.42 J