a = 5219.3N / 100kg
a = 52.2 m/s^2

At that acceleration/deceleration, how much time do you think it'll take to stop or turn around?

if the turn around is 52 meters long it will take exactly
1 second to turn around because its velocity is 52m/s.

if the turnaround is shorter it will take less time.

if you apply a force of 5219.3N for 1 second you can stop it in 1 second and 1 meter distance.

applying less force will not stop it as fast and will also require more stopping distance.

applying more force will stop it faster and in less stopping distance.

3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.