This process is the movement of soil, mud, rock, and other particles by wind, water, ice, or gravity. what is this called? a. plate tectonics b. erosion c. earthquake d. weathering

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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