A particle of mass m is revolving around...

A particle of mass m is revolving around a planet in a circular orbit of radius R. At the instant the particle has velocity `vec V` another particle of mass `m/2` moving at velocity ` (vec v)/2` collides perfectly in-elastically with the first particle. The new path of the combined body will take is

Circular

Elliptical

Straight line

Fall directly below on the ground

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