Question

Study the scenario.

An object is at rest. At five seconds, someone comes over and pushes the object with a force of 3 N to the right.

Which of the following choices describes the force needed to keep the object in static equilibrium?

a. A force of 3 N to the left must be exerted on the box at any time after 5 seconds so that the forces are balanced and the object moves at constant velocity.
b. A force of 3 N to the left must be exerted on the box at exactly 5 seconds, so that the forces are balanced and the object remains at rest.
c. There is no way to keep the object in static equilibrium once the person exerts the 3 N force on the box.
d. A force greater than 3 N to the left must be exerted on the object at exactly 5 seconds to prevent the object from moving.

I Know 100% that it isn't A and I don't think it is C so do you think it could be B?

Answer 1

"static" equilibrium means that the object remains at rest
... the forces must cancel each other , and be applied simultaneously

B looks good