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A particle slides down a frictional para...

A particle slides down a frictional parabolic `(y=x^(2))`track (A-B-C)starting from rest at point A (shown in the figure).Point B is at the vertex of parabola and point C is at a height less than that of point A.After C, the particle moves freely in air as a projectile. If the particle reaches highest point at P,then

A

KE at P=KE at B

B

height at P=height at A

C

total energy at P = total energy at A

D

time of travel from A to B = time of travel from B to P

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