AP EAMCET · PHYSICS · Laws of Motion
Block \(A\) of mass \(100 \mathrm{~kg}\) is kept above another block \(B\) of mass \(300 \mathrm{~kg}\). \(A\) is tied to the wall \(C\) with a horizontal string. The coefficient of friction between \(A\) and \(B\) is 0.35 and that between \(B\) and the horizontal surface is 0.5 . Find the horizontal force \(p\), necessary to move the block \(B\).
- A \(1150 \mathrm{~N}\)
- B \(1250 \mathrm{~N}\)
- C \(2350 \mathrm{~N}\)
- D \(1420 \mathrm{~N}\)
Answer & Solution
Correct Answer
(C) \(2350 \mathrm{~N}\)
Step-by-step Solution
Detailed explanation
Given, the coefficient of friction between \(A\) and \(B, \mu_1=0.35\) The coefficient of friction between \(B\) and surface, \(\mu_2=0.5\) Mass of block \(A, m_a=100 \mathrm{~kg}\) Mass of block \(B, m_b=300 \mathrm{~kg}\) Frictional force between blocks \(A\) and \(B\),…
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