A marble at rest is dropped from a tall building. The marble hits the ground with a velocity of 98m/s. How long was the marble in the air? PLS ANSWERRR V= g x t

where's the following? you gotta add it to know what the choices are

explanation:

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.

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i don’t know what the answer is i wish i