Can work or force be a negative number?

Question

I know acceleration can be negative (braking).

Answer 1

In two physics fields. One is if cosmic intervention attends the
out load of production, example being fire catching on an
assembly in combustion occurrence. Another is simiilar in the
event of a specific radio spur wave, such as an inactive nucleos from say nakishima in 1945 comes back from orbitting
the planet and has reattached molecules to cause odd, disfiguring, deforming reactions. This example is like a styrofoam
cup if hit by excessive forces, the cup cannot function.

Answer 2

Force is a vector. Therefore, strictly speaking, it cannot be negative - the magnitude of the force is just that, a magnitude, and the complete description of a force requires that we specify both its magnitude and its direction.

However, very commonly, when the direction is understood from context or when we are speaking of the components of a force vector, resolved to defined axes, we will speak of a "negative force." Certainly the situation of two equal forces that act in opposing directions is frequently encountered, and the easiest way to describe that is to reverse the sign of the force. So, while technically it may be something of a misnomer, everybody understands what you mean by the "negative" or "opposite" of a force or, indeed, of any vector. (e.g. acceleration, which you refer to in your question.)

Work is a scalar. It is the integral over displacement of the dot product F (dot) ds, where ds is the elemental displacement. If you reverse the direction ("change the sign") of either of the vectors, you change the sign of the dot product.

By convention, work done on a system (increasing its internal energy) is positive with respect to that system, and work done by a system is negative.

Answer 3

Yes it can! good question. Force = Mass * Acceleration
and Work = Force * Distant. Since in the world of physics acceleration and distance can both be negative, Work and/or Force can be negative. But, keep in mind that this is only true when using vectors.( which is commonly used in all high school physics classes for teaching purposes.)

Answer 4

Zack R I saw you on the news today...!!
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Answer 5

no it can't be just turn it into a fraction