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Mechanical Engineering - Engineering Mechanics

Exercise : Engineering Mechanics - Section 6
31.
For any system of coplaner forces, the condition of equilibrium is that the
algebraic sum of the horizontal components of all the forces should be zero
algebraic sum of the vertical components of all the forces should be zero
algebraic sum of moments of all the forces about any point should be zero
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The ratio of static friction to dynamic friction is always
equal to one
less than one
greater than one
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
A science teacher claimed that Newton's third law of motion is involved while studying the motion of rockets. His statement is
justified
not justified
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
One kg force is equal to
7.8 N
8.9 N
9.8 N
12 N
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Coefficient of friction depends upon
area of contact only
nature of surface only
both (a) and (b)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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