Which statement about drug use is correct?

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

read more on -

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms

the answer is 3.1 his answer is wrong mines is right