Aconstruction 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

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 = work done

f = force = 689.0 N

s = displacement = 0 m

Thus

answer; i believe the answer is hydraulic action;

voluntary muscles are controlled by the cerebellum.