Sasha's quirk, Newton Force, allows her body to generate a wind-like force, often times lifting her a few inches off the ground.

Her movements, while this is active, follows the rules of mainly First and Second Laws of Motion (Objects staying in motion/at rest, and Acceleration), with a bit of Friction on the side.

Her moveset in fighting, however, follows the Third Law of Motion (Action/Reaction). For attacks, she can shoot wind bullets or "force push" at villains. For defense, she can stop incoming objects, though it's difficult if said objects are small.

She was already practicing her ultimate move: Rolling Cannon, which follows a less talked about Fourth Law of Motion (Superposition). By gathering wind into a growing ball, she can fire it at just about anyone. This can work as a "bomb" against groups of villains or trap them inside the ball and ridding them of any friction. This can put them at a serious disadvantage, and because vulnerable against other heroes.

The problem is that due to the sphere's size, she can be pushed back easily by its recoil, even with her feet planted firmly on the ground.

It's still a work in progress.

---

Boku/My Hero Academia © Kohei Horikoshi
Art by  ShoNuff44