A rectangular plate ABCD of 100N acting along AB and DC in opposite direction if AB=3m and BC=5m what is the moment of the couple or torque acting on a plate

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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a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

their crystal patterns have been disrupted by stress

be subject to a force andchange its motion