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NEET
Exam
NEET
Subject
Physics
Chapter
Laws of Motion

NEET · Physics · Laws of Motion

In the diagram shown in figure, all pulleys are smooth and massless...

In the diagram shown in figure, all pulleys are smooth and massless and strings are light. Match the following columns. (
Column IColumn II
(A)1 kg block(p)will remain stationary
(B)2 kg block(q)will move down
(C)3 kg block(r)will move up
(D)4 kg block(s)5 m/s²
)

Options

  1. A(A \rightarrow r, B \rightarrow p, C \rightarrow q, D \rightarrow s)
  2. B(A→r,t\mathrm{A} \rightarrow \mathrm{r}, \mathrm{t}; B→p\mathrm{B} \rightarrow \mathrm{p}; C→q\mathrm{C} \rightarrow \mathrm{q}; D→q,s\mathrm{D} \rightarrow \mathrm{q}, \mathrm{s})
  3. C(A \rightarrow p ; B \rightarrow q ; C \rightarrow r ; D \rightarrow s)
  4. D(A \rightarrow p ; B \rightarrow p ; C \rightarrow q ; D \rightarrow r)

Correct answer

B. (A→r,t\mathrm{A} \rightarrow \mathrm{r}, \mathrm{t}; B→p\mathrm{B} \rightarrow \mathrm{p}; C→q\mathrm{C} \rightarrow \mathrm{q}; D→q,s\mathrm{D} \rightarrow \mathrm{q}, \mathrm{s})

Step-by-step solution

- Standard solution for this exact pulley setup gives: 1 kg moves up with (10  m\mathrm{~m}/ \mathrm{s}^2 ; 2  kg\mathrm{~kg}) remains stationary; 3 kg moves down; 4 kg moves down with (5  m\mathrm{~m}/ \mathrm{s}^2). - Mapping to Column II: (A →(\rightarrow(r, t), B → p, C → q, D →(\rightarrow(q, s)). Hence Option B.
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