True and false? When an object remains stationary, any forces acting on it must be balanced.

Balanced forces acting on a stationary object cause the object to remain at rest. True: Forces can give energy to an object it acts on causing the object to change it state of motion. If forces acting on an object are balanced, they do not cause a change in motion.

False

Explanation:

It is NOT possible for just three forces to be acting upon an object and they still balance each other. A free-falling object experiences a balance of forces.

car a and b are moving in opposite directions

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b.a device that inputs heat into a cool object