Askater of mass m standing on ice throws a stone of mass m with speed v in a horizontal direction. find the distance over which the skater will move in the opposite direction if the coefficient of kinetic friction between the skater and the ice is μk . (use any variable or symbol stated above along with the following as necessary: g.)

Explanation:

As we know that there is no external force on skater and the stone so the total momentum of the system will remains constant

so we will have

here we have

so the skater will move back with above speed

now the deceleration of the skater is due to friction given as

so here we have

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