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CBSE Class 11-science Answered

Two blocks of different masses are pushed along the frictionless surface at an angle. Draw the free body diagram of both the blocks and of the system. And also mention the forces acting on them separately.
Asked by Topperlearning User | 10 Jun, 2014, 10:01: AM
answered-by-expert Expert Answer

Free body diagram for block A:

 
Forces on block A are:

(i)  WA = Weight of the block, acting downward.
(ii)  nA = Normal reaction force from surface, acting vertically upward.
(iii) F­applied = Applied force
(iv) FBA = Force exerted on A by the block B.
 
Free body diagram for block B:
 
Forces on block B are:
 
(i)  WA = Weight of the block, acting downward.
(i)  nA = Normal reaction force, acting vertically upward.
(ii) FAB = Force exerted by A on B.
 
Free body diagram for the system of both blocks:
 
 
Resultant forces on both the system are:
(i)  nsystem = Total reaction force from the surface.
(ii)  Wsystem = Total weight of the system, acting downward.
(iii)  Fapplied  = Applied force
Answered by | 10 Jun, 2014, 12:01: PM

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