sounds like your transmission is slipping?
Could be your power packs, either one or both.
Yes timing can delay your acceleration
o2 censor
wheel balance
Acceleration
net force.
Just the opposite. It will cause the acceleration to drop by 50%.
acceleration
Yes.
You get the force required to cause the given acceleration on the given mass.
Every force causes acceleration, if it's not opposed and canceled by other forces.
Not necessarily. Changing direction does affect the velocity, which is acceleration and direction combined.