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Two separate blocks are placed one over another as shown in figure. What is the maximum magnitude of the frictional force acting on the lower block on ground? The coefficient of friction between the ground and block is μ = 0.2.
  • a)
    6 N
  • b)
    8 N
  • c)
    4 N
  • d)
    7 N
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Two separate blocks are placed one over another as shown in figure. Wh...
As maximum force of friction offered by ground on block is,
f = μ*normal reaction of ground
Here, effective normal reaction from ground is 40 N, as the upper block will lift up due to 15 N force acting on it.
So, fmax = 0.2*40 = 8 N
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Two separate blocks are placed one over another as shown in figure. What is the maximum magnitude of the frictional force acting on the lower block on ground? The coefficient of friction between the ground and block is μ = 0.2.a)6 Nb)8 Nc)4 Nd)7 NCorrect answer is option 'B'. Can you explain this answer?
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