1.

A particle of mass m is made to move with a uniform speed "v' along the perimeter of a polygon of n sides inscribed in a circle of radius "a".

Answer»

The magnitude of the inpulse at each corner of the polygon is 2mv sin `(2pi//a)`
The magnitude of the impulse at each corner of the polygon is 2mv sin `(2pi//a)`
The magnitude of change in MOMENTUM after it crosses two diaognally OPPOSITE corners of the polygon is zero
The magnitude of in momentum after it crosses any two DIAGONALLY opposite corners is 2 mV

Answer :A::B


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