a student compared two samples of matter he recorded the results in this chart which property do the two samples have in common

e) none of the above answers are 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.

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the part of the wave he is travelling on is the crest

thermal energy is the answer