Question

A student put the powder to the corom board . Sciencetific reason for adding powder is ,

A- frictional force is increased by powder.
B- frictional force is decreased by powder .
C- the speed of carom discs is increased due to powder.
D- the speed of carom discs is decreased due to powder .​

Answer 1

B or D

Step-by-step explanation:

think of it how you use chalk on a chalk board, its less friction using chalk instead lets say a marker on a white board.