define force and motion
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Answer:
We can say that force is a push or pull acting on an object or energy as an attribute of physical action or movement. This occurs when two entities are in contact. According to the universal law of gravitation, every object in this universe exerts a force on others. The force acting on an object is given by the following parameter:
SI unit of Force: newton(N) or kg.m/s2
Symbol of Force: F
Type of quantity: Vector quantity
Other units: dyne, pound-force, kilopond, poundal, kip
In simple words, whenever a body is moving, we say it is in motion. For instance, if a boy is walking down the street from his school to his home, we will say that the boy is in motion. But imagine if the boy stops for 5 minutes in the way and sits down. If someone asks at that time if the boy is in motion, the answer will be ‘No’. From this, we can infer that the motion of a body is dependent on time. In physics, we say that motion is the change in the position of a body with respect to time.
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