forces/force and motion
<|im_start|>user
Hi<|im_end|>
<|im_start|>assistant
Hello! How can I help you today?<|im_end|>
<|im_start|>user
What is a force in physics?<|im_end|>
<|im_start|>assistant
In physics, a force is a push or a pull that causes an object to change its motion or shape.<|im_end|>
<|im_start|>user
Is friction a type of force?<|im_end|>
<|im_start|>assistant
Yes, friction is a type of force that opposes motion between two surfaces that are in contact with each other.<|im_end|>
<|im_start|>user
What happens when forces are balanced?<|im_end|>
<|im_start|>assistant
When forces are balanced, the object remains at rest or moves at a constant speed in a straight line, because the forces acting on it are equal and opposite.<|im_end|>
<|im_start|>assistant
