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Kinetic Theory

Question

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A sphere of diameter 0.2 m and mass 2 kg is rolling on an inclined plane with velocity u = 0.5 mls. The kinetic energy of the sphere is

0.1 J

0.3 J

0.5 J

0.42 J

Solution

0.42 J

The kinetic energy of sphere while rolling on an inclined plane is given by

E_K =Tanslational kinetic energy + Rotational kinetic energy

$= (\frac{1}{2} {mv}^{2} \times 2 \times {(0.5)}^{2}) + (\frac{1}{2} \times \frac{2}{3} \times 2 \times {(0.1)}^{2} \times {(\frac{0.5}{0.1})}^{2}) E_{K} = 0.25 + 0.17 E_{K} = 0.42 J$

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Kinetic Theory

A sphere of diameter 0.2 m and mass 2 kg is rolling on an inclined plane with velocity u = 0.5 mls. The kinetic energy of the sphere is

0.1 J

0.3 J

0.5 J

0.42 J

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Pressure of an ideal gas is increased by keeping temperature constant. What is the effect on kinetic energy of molecules?

Pressure of an ideal gas is increased by keeping temperature constant. What is effect on kinetic energy of molecules?

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For Daily Free Study Material Join wiredfaculty

Kinetic Theory

A sphere of diameter 0.2 m and mass 2 kg is rolling on an inclined plane with velocity u = 0.5 mls. The kinetic energy of the sphere is 0.1 J 0.3 J 0.5 J 0.42 J

Some More Questions From Kinetic Theory Chapter

Pressure of an ideal gas is increased by keeping temperature constant. What is the effect on kinetic energy of molecules?

Pressure of an ideal gas is increased by keeping temperature constant. What is effect on kinetic energy of molecules?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

A sphere of diameter 0.2 m and mass 2 kg is rolling on an inclined plane with velocity u = 0.5 mls. The kinetic energy of the sphere is

0.1 J

0.3 J

0.5 J

0.42 J