Likewise, it gets easier to make that turn when the car's speed is much less because the car's inertia is lower - somewhere between the inertia of the speeding car and one that is parked.įinally, you cannot turn a parked car at all, not without applying force from the engine (or a push) to overcome the parked car's inertia, which keeps it in place.

If you are in a speeding car and you suddenly try to make a turn without decelerating, your car is probably going to shift over to the next lane, and you're going to miss your turn completely because you failed to overcome the car's inertia. This is pretty intuitive for most people.

Likewise, when you want to stop an object in motion or steer it in another direction, you also need to overcome that object's inertia to slow it down to a resting state.

Whenever one object exerts force on another object, the second object exerts an equal and opposite force on the first.īriefly, the first law states that when an object is at rest, you need to overcome its inertia in order to accelerate it.

The acceleration of an object depends on the mass of the object and the amount of force applied.

An object at rest stays at rest, and an object in motion will stay in motion, at a constant speed in a straight line, unless another force acts upon it.

Issac Newton's Laws of Motion can be defined as: But more than anything, it's the math behind it all that makes Newton's work so revolutionary – and the law everyone tends to skip over is all about the math of motion. Newton's Laws of Motion are famous for their definition of inertia, and the well-known rule that every action will have an equal and opposite reaction.

Sir isaac newton laws of motion