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 gives greater friction? Give reason
for your answer.
(b) List out any three methods to reduce friction

Answer 1

Answer:

Floor B have greater friction. because the object on floor B cover less distance than object on floor A.

Three methods for reducing friction are..

1 By Using Lubricants

2.By using oil

3.By using ball bearings