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tushar a Grade: 11

a block A kept on inclined surface begins to slide if inclination is 30 degrees.block A is replaced by another block B.and it is found that it just begins to slide if inclination is 40 deg. then----a)mass of A>mass of B b)mass of A


8 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points

Dear tushar

Equation of motion for Block A is when it just atart sliding

mag sin30 -μamagcos30=0

sin30 -μacos30=0............1

Equation of motion for Block B is when it just atart sliding

mbg sin40 -μbmbgcos40=0

sin40 -μbcos40=0............2

clearly these equation does not depends upon mass of block so all three condition can be possibel

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8 years ago
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