I mean these:Orodruin said:What do you mean by "three equations of motion"? Equations of motion generally just refer to the equations that describe how a system evolves with time, it does not have to refer to a particular system and the equations will look different depending on the system.
So there is no condition on the body, right? That the body has to be a point mass or something?Orodruin said:The suvat equations are valid for situations with constant acceleration.
kay said:So there is no condition on the body, right? That the body has to be a point mass or something?
No, it is not necessary for the body to be a point object- however, if it is not, the calculations are a bit harder- you will have to consider how the various parts of the body move relative to each other. If the object is flexible, that could be complicated! Even if the body is rigid, you would need to include possible rotation about the center of mass.kay said:When can we use the three equations of motion?
Also, Is it necessary for the body we are considering to be a point object?
Equations of motion are mathematical formulas that describe the motion of an object in terms of its position, velocity, and acceleration over time. They are used to analyze and predict the behavior of objects in motion.
Equations of motion should be used whenever we want to understand the behavior of an object in motion. They are particularly useful when the motion is not constant or when the forces acting on the object are changing.
A point object is a simplified model of an object that is treated as having no size or shape, and all of its mass is concentrated at a single point. An extended object is a more realistic model that takes into account the size and shape of the object, and the distribution of its mass.
Point objects are often used in equations of motion because they simplify the calculations and make the equations easier to solve. They are also useful for analyzing the motion of objects that are moving in a straight line with constant acceleration.
No, equations of motion are only applicable to certain types of motion, such as linear motion (motion in a straight line) and uniform circular motion (motion in a circular path at a constant speed). They cannot be used for more complex types of motion, such as rotational or non-uniform circular motion.