Question

When a pencil cell is released from a certain point on an inclined wooden board, it travels a distance of 35 cm 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 or B offers greater friction? Give Reasons for ur answer.

Answer 1

friction reduces the motion of an object.

in floor A it traveled a greater distance so it experienced more motion due to less friction compared to floor B

hence floor B offers more frictional force

Answer 2

We know that friction reduces the acceleration or speed of motion of any object, as we saw in the first experiment with floor A the cell traveled for 35 cm whereas in experiment 2 the cell traveled for 20 cm which means that floor B offers more friction,thus stops the cell in lesser travel. So, we can say that floor B offers greater friction.