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Is it because the mass of a given object exerts a gravitational force upon itself?
Any force of an object on itself (like your left hand pushing on your right) has no effect on how easy it is to move the object.davidbrown said:Is it because the mass of a given object exerts a gravitational force upon itself?
Inertia is the tendency of an object to resist changes in its state of motion. This means that an object at rest will remain at rest and an object in motion will continue moving in the same direction and at the same speed unless acted upon by an external force.
Objects have inertia because of the first law of motion, also known as the law of inertia, proposed by Sir Isaac Newton. This law states that an object will maintain its state of motion unless acted upon by an external force. Inertia is a property of matter and all objects, regardless of their size or shape, possess inertia.
The mass of an object directly affects its inertia. The greater the mass of an object, the greater its inertia. This means that it will require more force to change the state of motion of a heavier object compared to a lighter object.
Yes, the shape of an object can affect its inertia. Objects with irregular shapes or distributed mass have a higher moment of inertia, making it more difficult to change their state of motion compared to objects with a smaller moment of inertia, such as a sphere or a cube.
An object's inertia cannot be altered, but it can be affected by external forces. For example, if an object is in motion and a force is applied in the opposite direction, the object's inertia will cause it to resist the change in motion. However, if the force is strong enough, it can overcome the object's inertia and change its state of motion.