Mechanical Engineering - Engineering Mechanics - Discussion

Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 49)
49.
two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
15 N and 5 N
20 N and 5 N
15 N and 15 N
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
24 comments Page 2 of 3.

Sanjeev said:   7 years ago
Thanks @Roj.

Nikss said:   8 years ago
@ALL.

Two forces acting parallel in the same direction. So the resultant will be a single force in the same direction. So from where this clockwise and anticlockwise concept came?

All forces will be in same direction.

KRISH REDDY said:   8 years ago
Simple method friends.

All forces equal to the resultant is 20.

So see the option s where the 2 forces are 20 so that will be the answer. 5+15=20.

M. Flowers said:   1 decade ago
I'm not understanding what method you applied to get these answers. What formula was used?

Lova said:   9 years ago
Thank you very much friends.

POPPY said:   9 years ago
Resultant R = F1 + F2 = 20N (i) F1----6mm-----R------18mm------------F2 equating clockwise moment to anticlockwise moment then, 18F2 = 6F1 THEN, F1 = 3F2, From equating in (i) we get F1=15 &F2 = 5.

Pandees waran said:   9 years ago
F1 + F2 = 20.

15 + 5 = 20 simple method.

Nithyananda said:   10 years ago
They are given F1=24, but I don't know why the two person taken as F1=14?

Fathima said:   10 years ago
Can you give us a schematic sketch?

Rishi said:   1 decade ago
Where did 18f1 and 6f2 came from? I think you can simply add the forces as they are like and parallel. F1+F2=20 and option 1 satisfies it.


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