Multiple Choice Question (MCQ)

Question: What is the shape of buttress thread flank?
A. One flank is 90 Degree and the other 45 Degree
B. One flank is 30 Degree and the other 45 Degree
C. One flank is 60 Degree and the other 45 Degree
D. Two flanks are at 60 Degree
Correct Answer: One flank is 90 Degree and the other 45 Degree
Explanation

Work is defined as the product of the force applied and the distance moved in the direction of the force. The unit of work is Joule (J) in the International System of Units (SI)

The formula for work is: Work = Force x Distance x cos(theta)

Where theta is the angle between the force and the displacement. In this case, since the force and the displacement are in the same direction, the angle is 0 degrees, and the cos(0) is 1, so we can simplify the formula as: Work = Force x Distance

In this case the force is 250 newtons, the distance is 15 meters.

So the work done is: Work = 250 x 15 = 3750 Joules

So the work done is 3750 Joules.