That's also important — the acceleration is in the direction of the force.

这一也十分重要-，加速度与力方向相同。

youdao

The drag force acts in the opposite direction to the path of the ball.

阻力方向与球的运行方向相反。

youdao

of the force in the x direction.

若只在y方向移动。

youdao

of the force in the x direction.

若只在y方向移动。

youdao