Question

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

Quickly Plz

Answer 1

Answer: A: 0 J

Explanation:

Work is defined as the force acting on object leading to displacement of that object.

As the worker uses 689.0 N of force to hold 10 stationary beams, there is no displacement of the object.

$w=f\times s$

w = work done

f = force = 689.0 N

s = displacement = 0 m

Thus $w=689.0\times 0=0Nm=0Joules$

Answer 2

i believe it is A or D, i hope this helps