friction can be reduced by A oiling and greasing B using talcum powder C using air cushion D all of these
Answers
Answered by
3
D) All of these
Reason
friction can be minimised by using lubricants like oil and grease and by using ball bearing between machine parts .
dry talcum powder reduces friction slightly for certain materials against skin, but increases friction when it becomes wetted.
An air cushion is a cushion which is filled by air .
this is used in many ways. since it forms a separation with air , so definitely it reduces friction.
army x blink 7752
Similar questions
Math,
3 days ago
Accountancy,
3 days ago
English,
3 days ago
World Languages,
7 days ago
Physics,
7 days ago
Math,
9 months ago
Math,
9 months ago