A particle is projected vertically upwards with a speed V₀ from the surface of the earth. The maximum height reached by the particle is equal to radius R of the earth. If g be the acceleration due to gravity on the surface of the earth, then :

• A

  ${\mathrm{v}}_0^2<2\mathrm{gR}$

• B

  ${\mathrm{v}}_0^2>2\mathrm{gR}$

• C

  ${\mathrm{v}}_0^2=2\mathrm{gR}$

• D

  ${\mathrm{v}}_0^2=\mathrm{gR}$