A spring balance is attached on both ends to strings; the strings hang over frictionless pulleys and are each connected to 20 N weights as shown in Fig. The reading on the scale will be closest to (A) 0 N (B) 10 N (C) 20 N (D) 40 N

Question

venu · Answer

B,because the attached weights are equal,so there will be no strecthing of string

Saurabh Kumar · Answer

Although the diagram is not given, the net extension produced in the system is the force due to weight hung.....

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A spring balance is attached on both ends to strings; the strings hang over frictionless pulleys and are each connected to 20 N weights as shown in Fig. The reading on the scale will be closest to (A) 0 N (B) 10 N (C) 20 N (D) 40 N

A spring balance is attached on both ends to strings; the strings hang over frictionless pulleys and are each connected to 20 N weights as shown in Fig. The reading on the scale will be closest to
(A) 0 N
(B) 10 N
(C) 20 N
(D) 40 N

2 Answers

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A spring balance is attached on both ends to strings; the strings hang over frictionless pulleys and are each connected to 20 N weights as shown in Fig. The reading on the scale will be closest to (A) 0 N (B) 10 N (C) 20 N (D) 40 N

A spring balance is attached on both ends to strings; the strings hang over frictionless pulleys and are each connected to 20 N weights as shown in Fig. The reading on the scale will be closest to(A) 0 N (B) 10 N (C) 20 N (D) 40 N

2 Answers

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A spring balance is attached on both ends to strings; the strings hang over frictionless pulleys and are each connected to 20 N weights as shown in Fig. The reading on the scale will be closest to
(A) 0 N
(B) 10 N
(C) 20 N
(D) 40 N