a ball rolling on a level floor gradually slows down
a) which force causes the ball to slow down
b) suggest tow method to reduce this force
c) what type of force is experienced here( contact or non contact
Answers
Answer:
a) frictional force
b) two methods to prevent friction are
~ rolling the ball on smooth surface
~oiling the surface
c) contact force
as the ball comes in contact with the surface on which it is rolled.
Explanation:
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Answer:
a) The frictional force .
b) By rolling the ball on a smooth surface and by lubricating.
c) Contact force .
Explanation:
a)When two surfaces are in contact with each other their ridges and grooves get stuck with each other causing them to slow down.
b)If the surface is smooth the ball will travel more distance.And if we use a lubricate the ball or surface the ridges and grooves will not get tightly stuck and the ball will travel more distance.
c)When two two surfaces are in contact with each other or are touched with each other are in contact. The ball and floor are in contact. Hence,this type of force is contact force