A wedge of mass M=4 and lies on a frictionless place a particle of mass m approaches the wedge with a speed v. There is no friction between the particle and the plane or between the particle and the wedge. The maximum height climbed by the particle on the wedge is given by?
a.v²/g
b.2v²/7g
c.2v²/5g
d.v²/2g
