A constant force in the direction of the line
An object is not accelerating when it is moving in a straight line at an unchanging speed (which may be zero).
If it is a horizontal straight line, it means the object is moving at constant velocity. If it is a sloped line, it means the object is accelerating.
If the object's speed is changing, or it's not moving in a straight line, then it's accelerating.
No. An object is accelerating if it is changing speed or direction of travel. Since the person in question is running at a constant speed in a straight line, they are not accelerating.
Motion implies momentum, which implies velocity. Linear implies a straight line. Accelerating implies changing velocity. And uniform implies constancy. So, when an object moves in a straight line and accelerates at a constant rate, you have uniformly accelerating linear motion.
If the motion is all in a straight line, then Displacement = (1/2) x (acceleration) x (time spent accelerating)2
it makes it go in a straight line
If its slanted up its accelerating, if down its decelerating.
straight line
accelerating
accelerating
An outside force.