It slows to a rest and then starts moving in the opposite direction at constant acceleration in that direction.
During reflection, the direction of light reverses. If light was traveling towards a reflective surface at a certain angle, it will bounce off the surface at an equal angle but in the opposite direction.
If velocity is zero and acceleration is negative, the object will start moving in the direction opposite to its previous motion. It will decelerate and eventually come to a stop before moving in the opposite direction.
You are either pushed the opposite direction of the current or go nowhere.
Air moves in opposite direction and if it's on a car-it will overheat
When you move the slide to the left, the image shifts to the right. This happens because the slide movement is in the opposite direction of the image movement, creating an apparent motion in the opposite direction.
If the acceleration of a body is opposite in direction to its velocity, the body is decelerating or slowing down. This means that the body's speed is decreasing over time.
If you are already traveling at the speed of a bullet, firing another bullet in the opposite direction would cause the two bullets to separate at a total speed equal to the sum of their individual speeds. This is because the velocity of the bullet fired in the opposite direction would be added to the velocity of the already moving object. Both bullets would continue moving independently after being fired.
Maglevs don't effect birds except by hitting them.
When the direction of the current in a wire is reversed in a magnetic field, the direction of the force acting on the wire also reverses. This causes the wire to move in the opposite direction within the magnetic field.
Newton's third law of motion: every action has an equal and opposite reaction.
The magnetic field collapses to zero, then builds up again for the current in the opposite direction.