help me solve this the easiest way possible and explain it

A person that is laying down supine on a bench doing a bench press exercise with a barbell that has a mass of

$102$ kg$.$ At the start, the individual takes the barbell off the rack and holds it in a static position prior to lowering

the bar $($position A$).$ Once the individual starts to lower the barbell in the negative vertical direction, they do so

at a rate of $-1\mathrm{.}65$ m$/$s$2($position B$).$ Once they lower the barbell all the way down to their chest, they push the

barbell in the positive vertical direction at a rate of $2\mathrm{.}75$ m$/$s$2($position C$).$ After the repetition is completed, they

lower the bar in the negative vertical direction again at a rate of $-2\mathrm{.}05$ m$/$s$2($position D$).$ Once the barbell touches

their chest, they push the barbell in the positive vertical direction at a rate of $3\mathrm{.}06$ m$/$s$2($position E$).$ Solve for

how much pushing force would be needed at each position to allow this person to achieve the respective

accelerations of the barbell during the bench press exercise