How do balanced forces affect an objects motion?

Balanced forces do not change the motion of an object.

Explanation:

If an object is in motion, it will keep moving in the same direction and at the same speed if the forces acting on it are balanced. Look at Diagram A, shown below.

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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