A construction worker is using his weight to keep a stationary stack of wooden beams from falling. If the construction worker uses 689.0 N of force to hold 10 beams stationary against a wall, how much work does he do?
A. 0 J
B. 0.0150 J
C. 68.9 J
D. 6,890 J
I think it's D, am I right?
I need to know if I'm right fast, like In the next 5 minutes
your correct
too late but it’s not d,, i finished it w the answer d and got it wrong
To find the work done by the construction worker, we need to determine the formula for work and use the given information to calculate it. The formula for work is:
Work = Force * Distance * cos(theta)
Where:
- Force is the force applied by the construction worker (689.0 N)
- Distance is the displacement over which the force is applied (Since the stack of wooden beams is stationary, the displacement is zero)
- theta is the angle between the force applied and the displacement (Since the displacement is zero, the angle is also zero degrees, so the cosine of theta is 1)
Now, let's calculate the work:
Work = 689.0 N * 0 * cos(0°)
= 0 J
Therefore, the correct answer is A. 0 J.