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In Fig. initialy the system is at rest .Find out minimum value of `F `for which sliding start between the two blocks Given`m_(A) = 10 kg` and `m_(B) = 20 kg`

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At just sliding condition limiting friction is acting

` F - 50 = 20a`….(i)
`f = 10a` ….(ii)
`50 = 10a`
`:. a = 5 ms^(-2)`
Hence, `F = 50 + 20 xx 5 = 150 N `
`:. F_(max) = 150 N`
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CENGAGE PHYSICS-NEWTON'S LAWS OF MOTION 2-Exercise 7.2
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  2. In Fig. initialy the system is at rest .Find out minimum value of F fo...

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  3. Find the acceleration of the two blocks The system is initaily at rest...

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  4. Find the acceleration of the two blocks . The system is initialy at re...

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  5. Find the acceleration of the two blocks The system initally at rest a...

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  8. A small block of mass m is placed on a plank of masss M .The block is ...

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  9. Two block A and B are arrenged as shown in figure (m(A) = 5 kg and m(B...

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  10. In Fig block 1 is placed on top of block 2 .Both of then have a mass o...

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  11. A mass of 80 kg stands on a horizontal weight machine of negligible ma...

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  12. A block of mass m(1) = 1 kg is horizontally thrown with a velocity of ...

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  14. Find minimum normal force to be each hand to hold there identical boo...

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  15. A plank of mass M is placed on a rough horizontal force F is applied o...

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  16. A man of mass m is moving with a constant acceleration a w.r.t plank i...

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