Navigate

A mass m moves in a circle on a smooth horizontal plane with velocity v₀

A mass m moves in a circle on a smooth horizontal plane with velocity v₀ at a radius R₀. The mass is attached to string which passes through a smooth hole in the plane as shown.

The tension in the string is increased gradually and finally m moves in a circle of radius R₀/2. The final value of the kinetic energy is

Options

(a) 1/4 mv₀²
(b) 2 mv₀²
(c) 1/2 mv₀²
(d) mv₀²

Correct Answer:

2 mv₀²

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

AIPMT2015
admin:

Related Questions

  1. For the radioactive nuclei that undergo either α or β decay, which one
  2. A steady current is passing through a linear conductor of non-uniform cross-section.
  3. A bullet is shot from a riffle. As a result the rifle recoils.The kinetic energy of riffle
  4. An electric kettle has two heating elements. One brings it to boil in ten minutes
  5. A particle under the action of a constant force moves from rest upto 20 seconds