Asked by reem

When a pencil cell is released from a certain point on a inclined board,it travels a distance of 35cm on floor A before it comes to rest.when the same pencil cell is released from the same point on the same inclined board,it travels a distance of 20 cm on floor B before coming to rest.which floor A,B offers greater friction?give reason for your answer.
Answered by Damon
less distance ---> more friction, more retarding force
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