Grade 11Mechanics

TWO BLOCKS A and B of mass 10 kg and 20 kg respectively are days as shown in figure coefficient of friction in all the surface is 0.2 then find the tension in the string and acceleration of block B take acceleration due to gravity equals to 10 metre per second square

Abhi

8 Years agoGrade 11

1 Answer

Rohit

7 Years ago

Since block M1 is attached to the string so it will remain stationary M2 has tendency to move downwards.so friction on m2 will act in upward direction.

N is the force by which the both block are pressed such that N=Tcos30

For block m1

M1g+mu(Tcos30)-Tsin30=M1

For block m2

M2g-(muN+muN)=m2a

On solving t is equal to 250 Newton and a is equal to 3 M per second square

M1 G+ new bracket t cos 30 degree bracket - 2 sin 30 degree is equal to M 180 bracket

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TWO BLOCKS A and B of mass 10 kg and 20 kg respectively are days as shown in figure coefficient of friction in all the surface is 0.2 then find the tension in the string and acceleration of block B take acceleration due to gravity equals to 10 metre per second square

Abhi

1 Answer

Rohit

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