Statement 1: Wrestlers apply oil on their bodies to increase friction. Statement 2: Grooving provides a better grip. Choose the correct option.
A Kabaddi player is trying to increase his grip. He attempts to rub his hands with one of the following materials. Which one should he choose for a better grip?
Consider the following statements: Statement 1: Rough surfaces generally have more friction between them. Statement 2: When we attempt to slide one surface over another, we have to apply a force to overcome interlocking between the irregularities present on the surfaces. Choose the correct option.
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.
Soles of the shoes have grooves to __________ friction while oil is applied to door hinges to _______ friction.