Question

A cylinder of 20 kg mass and 15 cm radius rolls without slipping on a horizontal surface. If it moves with a velocity of 3 m/s then:
(A) Kinetic energy of translation is 90 J.
(B) Kinetic energy of translation is 45 J.
(C) Kinetic energy of centroidal rotation is 45 J.
(D) Kinetic energy of centroidal rotation is 90 J.
(E) Potential energy is 45 J.
Choose the correct answer from the options given below:

• A. (B), (D) only
• B. (B), (C), (E) only (3)
• C. (A), (D), (E) only
• D. (A), (C) only

Answer 1

The Correct Option is D

The correct option is (D): (A), (C) only