A particle of unit mass moves under the influence of the net force F = 1/r3 r-hat. At the initial time the particle is

[answerhappygod]

A particle of unit mass moves under the influence of the net
force F = 1/r3 r-hat. At the initial time the
particle is at the distance r=2 from the origin and its
angular velocity is equal to 2. It follows that
the particle moves in a circle
the trajectory of the particle is unbounded
the angular momentum of the particle tends to zero when time
tends to infinity
the angular velocity of the particle remains constant