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Standard XII
Physics
Question

A 5 Kg block (A) is placed on 10 Kg block (B) which is at rest on the table.Coefficient of the friction between (A) & (B) 0.3 and between (B) & table is 0.4 .A 40 N horizontal force is applied on the block (B) , then the friction force between the block (A) & (B) is :
  1. 0
  2. 15 N
  3. 60 N
  4. 40 N

A
60 N
B
15 N
C
40 N
D
0
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