A particle falls towards earth from infinity. Its velocity on reaching the earth

A particle falls towards earth from infinity. Its velocity on reaching the earth would be

Options

(a) infinity
(b) √(2gR)
(c) 2 √(Rg)
(d) zero

Correct Answer:

√(2gR)

Explanation:

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

admin:

View Comments (1)

  • Velocity will be equal to the escape velocity from Earth i,e root over of 2gR

Related Questions

  1. Young’s modulus of perfectly rigid body material is
  2. In a thermodynamic system, working substance is ideal gas. Its internal energy
  3. The mean radius of the earth is R, its angular speed on its own axis is ?
  4. If the lattice parameter for a crystalline structure is 3.6 Å, then the atomic radius
  5. A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes