Which of the following should be used to reduce friction on a carrom board?
A layer of grease
A lubricating oil
A dry lubricant
A ball bearing
A dry lubricant such as talcom powder should be used to reduce friction on a carrom board.
Of the following statements choose the correct statement : A) Grease is used to reduce friction in the bicycle chain. B) Ball bearings are used to reduce friction in a fan. C) Oil can be used to increase friction in a car engine. D) Talc can be used to reduce friction in a carrom board.