In a meeting room there are chairs a table and people which of these things has a temperature (a) lower than (b) greater than (c) equal to the temperature of the air?

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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trig 15.3 cos