Abercynon Personal Trainer - SOS Executive Personal Training
Inertia is defined as the resistance of an object or body to a change in motion in any direction and is a property of the objects or a body's mass
. More mass equal's greater inertia, therefore, the greater the force that is needed to move it. Basically if you need an object to move then push it! Furthermore, if an object is moving it will continue to move unless another force is applied to it, either with it to increase its speed or against it to change its direction or stop it. If the force applied is sufficient to get the car rolling it will continue to move in the direction of force unless acted upon by another force, for instance, frictional force supplied by the ground and the resistance offered by air. Unless the initial force is continued these two additional forces will quickly act to bring the car to a stop. Weight training further illustrates Newton's first law. In order to lift a barbell from the floor, the lifter must exert an upward force greater than the weight of the barbell, otherwise it will not move.
Abercynon Personal Trainer - SOS Executive Personal Training