Mechanical Engineering - Engineering Mechanics - Discussion

Discussion Forum : Engineering Mechanics - Section 5 (Q.No. 45)
45.
Two forces are acting at an angle of 120°. The bigger force is 40N and the resultant is perpendicular to the smaller one. The smaller force is
20 N
40 N
80 N
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
23 comments Page 3 of 3.

Ravi said:   8 years ago
Here, Cos 120 is -1/2.

Mithilesh bhakta said:   9 years ago
40 * cos120 = 20N.

Jitu said:   6 years ago
40 *sin30 = 20.


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