[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
A. along the plane
B. horizontally
C. vertically
D. at an angle equal to the angle of friction to the inclined plane
E. unpredictable
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
[B].
Answer: Option A
Explanation:
No answer description available for this question.
A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A. not a replace them by a single force
B. to replace them by a single force
C. to replace them by a single force through C.G.
D. to replace them by a couple
E. to replace them by a couple and a force