The car starting point
The car starting point
Depends entirely on your frame of reference! If you are in a car traveling along side it at 50 ms, the car will appear to be standing still. If you are going the opposite direction at 50 ms, it will appear to be traveling at 100ms.
usually the motion of your frame of reference is 0. When you are in a train going 50 mph, your frame of reference would be you are going 0 mph and the tracks are traveling at -50 mph.
Work is force X distance travelled. Force is mass x acceleration. Aceeleration depends on the frame of reference from which one is measuring it. Hence work done depend on the frame of reference from which one is measuring it. QED
The most common frame of reference for measuring motion is the Earth or an observer on the Earth. Motion is often described in relation to fixed landmarks or objects on Earth's surface. This allows for a consistent point of reference to determine the speed, direction, and acceleration of an object.
Reference points are important when measuring speed because they provide a stationary frame of reference to compare the movement of an object. Without a reference point, it is difficult to determine if an object is moving or at what speed it is moving. By having reference points, we can accurately measure an object's speed relative to its surroundings.
In physics, a point of view with regard to motion is called a reference frame. It is used to describe the motion of an object relative to a chosen point or object, providing a frame of reference for measuring distances and velocities. Different reference frames may result in different observations of the same motion.
Specifying a reference frame when describing motion is important because it provides a point of comparison for measuring the movement of an object. Without a reference frame, it would be difficult to accurately determine the speed, direction, and position of an object. By using a reference frame, you can ensure that your observations are consistent and reliable, leading to more accurate measurements of motion.
In physics, the Coriolis effect is a deflection of moving objects when they are viewed in a rotating reference frame.
An inertial reference frame is a frame of reference in which an object not subject to external forces moves at a constant velocity. An absolute reference frame is a hypothetical frame of reference that is fixed in space and in which all other frames of reference are measured. Inertial reference frames are relative to each other, while the absolute reference frame provides a universal standard of motion.
"c" is usually used, in this context, for the speed of light. If such a particle has the speed of light in one frame of reference, then, strange as it may seem, it will have the speed of light in ANY frame of reference.
A frame of reference is used to describe motion by providing a point of view from which to observe and analyze the movement of an object. It helps establish a coordinate system for measuring position, velocity, and acceleration relative to a fixed or moving observer. By choosing a specific frame of reference, we can better understand the motion of objects in space.