Matthew throws a ball straight up in the air it rises for a period time then it begins to drop at which point in the balls journey will gravity be greatest force acting on the ball?

The greatest force of gravity on the ball will occur at the point when the ball is near to hit the ground.

As we know that the earth's center attracts everything towards its center with an acceleration of 9.8 m/s² so it simply means that the change in velocity must occur to produce acceleration. When the ball comes towards the earth, its speed contineously increases and it is at maximum level when it is about to hit the ground so this is the point where gravitational force is maximum.

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)