11/28/2023 0 Comments First law of motion![]() ![]() If the submarine is moving, it is impossible to tell which direction it is moving from the forces alone, only that it will continue in the same direction at the same speed. The submarine will continue with the same motion, either remaining stationary or moving at a constant speed. This means that there is no resultant vertical acceleration. They are balanced, so the vertical resultant force is also zero. The vertical forces are equal in size and opposite in direction. This means that there is no horizontal acceleration. They are balanced, so the horizontal resultant force is zero. The horizontal forces are equal in size and opposite in direction. The horizontal forces will not affect its vertical movement and the vertical forces will not affect its horizontal movement. The first law of motion is sometimes also known as the law of inertia. The submarine above has both vertical forces and horizontal forces acting on it. If the forces acting on an object are not balanced, the resultant force is not zero Forces on a submarine an object that begins to fall experiences less air resistance than its weight, so it accelerates Newton’s First Law of motion states that a body at rest will remain at rest unless acted upon by an unbalanced force. ![]() at the start of their run, a runner experiences less air resistance than their thrust, so they accelerate.Newtons first law states that an object will remain at rest or move at. For example, when a car accelerates, the driving force from the engine is greater than the resistive forces. Newtons first law of motion explains how inertia affects moving and nonmoving objects. This includes situations when the speed changes, the direction changes, or both change. Newton's first law can also be used to explain the movement of objects travelling with non-uniform motion. If the forces acting on an object are balanced, the resultant force is zero Examples of objects with non-uniform motion an object falling at terminal velocity experiences the same air resistance as its weight.a runner at their top speed experiences the same air resistance as their thrust.For example, when a car travels at a constant velocity, the driving force from the engine is balanced by the resistive forces such as air resistance and frictional forces in the car's moving parts. ![]() ![]() Newton's first law can be used to explain the movement of objects travelling with uniform motion (constant velocity).
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