An object of known mass M with speed vo travelstoward a wall. The object collides with it and bouncesaway from the wall in the opposite direction in which theobject was initially traveling. The wall exerts an averageforce F, on the object during the collision. A studentmust use the equation Ap= FÅt to determine thechange in momentum of the object from immediatelybefore the collision to immediately after the collision.Which side of the equation could the student use todetermine the change of the object's momentum?Ap,because the mass of the object andthe initial speed of the object are known.FAt, because the average forceexerted on the object during the collisionis known.Either side of the equation may be usedbecause the mass of the object, theinitial speed of the object, and theaverage force exerted on the objectduring the collision are known.Neither side of the equation may beused because there are too manyunknown quantities before, during, andafter the collision.

Which side of the equation could the student use to determine the change of the object's momentum.…

Answered: An object of known mass M with speed vo…

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