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There will be no relative motion between...

There will be no relative motion between P and Q if pseudo force on block P is less than or just equal to limiting friction between P and Q.
i.e. `m("KA"/"2m")` Limiting friction
Maximum friction = `"KA"/2`
The first law of thermodynamics is based on :–

A

Law of conservation of energy

B

Law of conservation of mechanical energy

C

Law of conservation of gravitational P.E.

D

None of the above

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The correct Answer is:
A
1st law of thermodynamics is based on law of conservation of energy
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