Laws Of Motion Question 82

Question: Which of the following sets of concurrent forces may be in equilibrium [KCET 2003]

Options:

A) F1=3N,F2=5N,F3=9N

B) F1=3N,F2=5N,F3=1N

C) F1=3N,F2=5N,F3=15N

D) F1=3N,F2=5N,F3=6N

Show Answer

Answer:

Correct Answer: D

Solution:

Range of resultant of F1

and F2 varies between (3+5)=8N and (53)=2N .

It means for some value of angle (θ) ,

resultant 6 can be obtained.

So, the resultant of 3N, 5N and 6N may be zero and the forces may be in equilibrium.



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