SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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because forces are what stop and start motion
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B)because balanced forces cannot exist in nature
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because motion is the inherent state of all matter
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because motion, once begun, continues to accelerate
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Detailed explanation-1: -Answer and Explanation: An object stays in motion unless acted on by an unbalanced force because of inertia. Inertia is a property which all objects have as a consequence of the mass that they possess. This property is the subject of Newton’s first law of motion.
Detailed explanation-2: -Inertia is the tendency of all objects to resist any change in motion. Inertia causes a moving object to stay in motion at the same velocity (speed and direction) unless a force acts on it to change its speed or direction. It also causes an object at rest to stay at rest.
Detailed explanation-3: -An object will continue to move until a force slows or stops it. The force stopping the object’s motion might be an obvious one-the ground! Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance).
Detailed explanation-4: -Newton’s First Law of Motion states that a body at rest will remain at rest unless an outside force acts on it, and a body in motion at a constant velocity will remain in motion in a straight line unless acted upon by an outside force.
Detailed explanation-5: -However balanced forces would never cause moving objects to stop; an unbalanced force would be required to stop a moving object.