nelone said:An elevator is moving upward with an acceleration of 1.0 m/s2. The total mass of the elevator and the passengers is 800kg. I need to find the tension in the elevator cable assuming g=32ft/s2. Need help, beginner in physics. Thanks!
Newton's Laws of Motion are three fundamental laws of physics that describe the relationship between an object's motion and the forces acting upon it. They were developed by Sir Isaac Newton in the late 17th century and are considered the foundation of classical mechanics.
The first law of motion, also known as the law of inertia, states that an object at rest will remain at rest and an object in motion will remain in motion at a constant velocity unless acted upon by an external force.
The second law of motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. In other words, the greater the force applied to an object, the greater its acceleration will be, and the more mass an object has, the less it will accelerate.
The third law of motion, also known as the law of action and reaction, states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object will exert an equal and opposite force back on the first object.
Newton's Laws of Motion have many practical applications in everyday life. For example, they explain how a car moves when the gas pedal is pressed, how a ball bounces when it hits the ground, and why objects fall to the ground when dropped. Understanding these laws also helps engineers design buildings, bridges, and other structures that can withstand external forces.