We know that friction depends upon mass of the body when we roll down the iron ball and a football on the ground which ball will travel more distance ?why?
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Friction DOES NOT depend on the massof the body. It depends on the normal force and the roughness of the surface in contact. When a body is placed on the ground, themass of the body (weight=mass*acceleration due to gravity) comes into play for the normal force from the ground.
srvenkat:
Which ballwill travel more distance
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