Science, asked by ArohiMathur, 1 year ago

plz answer questions 6,7,8 and 9

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Answered by hemanthsistla

1st one is mainly due to friction and carecterstic of object.But it can be are of irregularity also.2nd one is no friction actually.Because untill it moves no friction.3rd one is due to high support of friction.And finally last one is due to it reduce the friction which is called a lubricant

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