A sphere is rolling without slipping on a horizontal plane. The ratio of its rotational kinetic energy and translational kinetic energy is:
Correct answer: B. 1:2
- A. 2:3
- B. 1:2
- C. 2:7
- D. 2:9
Explanation
Correct answer is B. The correct ratio of rotational kinetic energy (Krot) to translational kinetic energy (Ktrans) for a sphere rolling without slipping on a horizontal plane is: Krot : Ktrans = 1 : 2 In other words, the rotational kinetic energy is half of the translational kinetic energy. This is true for any object, not just spheres, that rolls without slipping.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Simple Harmonic Motion
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
Practise Waves
1,281 free Waves MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Simple Harmonic Motion questions
The condition of weightlessness is: (N = Normal Reaction and W is weight)
A solid cylinder of mass 20 kg rotates about its axis with angular velocity 10ms-1 radius 0.2m. The moment of inertia of the cylinder is:
Which one of the following rolling body has 50% translational K.E and 50% rotational K.E?
The frequency of artificial gravity is:
A particle of mass 100g starts its motion from rest along a circular path of radius 10 cm. If its velocity becomes 10 ms-1 then its centripetal force is:
Which one of the following is conserved when the torque acting on a system is zero?