Navigate

A particle is moving in a circle with uniform speed v. In moving from a point to another

A particle is moving in a circle with uniform speed v. In moving from a point to another diametrically opposite point

Options

(a) The momentum changes by mv
(b) The momentum changes by 2mv
(c) The kinetic energy changes by 1/2 mv²
(d) The kinetic energy changes by mv²

Correct Answer:

The momentum changes by 2mv

Explanation:

The diametrically opposite points, the velocities have same magnitude but opposite directions. Therefore, change in momentum is MV – (- MV) = 2MV.

OA2003
admin:

Related Questions

  1. A balloon with mass m is descending down with an acceleration a
  2. The Rutherford scattering experiment proves that an atom consists of
  3. 180⁰ phase difference is obtained when light ray is reflected from
  4. The Kα X-ray of molybdenum has a wavelength of 71×10⁻¹² m. If the energy of a molybdenum
  5. The relationship between decay constant λ and half-life T of a radioactive substance is