Caffeine dosage causes a change in the time to finish a maze and it isn't possible for that the time to finish a maze could cause a change in caffeine dosage.

in physics zero. in muscle fatigue could be high

1 the 4 is sig

f=ma newton

f=100x2.5=250n

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.