If an object traveling in one direction has a positive velocity, what kind of velocity would the same object traveling in the opposite direction have?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.