stressedgirl said:Umm.. I don't understand. How would the 't' answer the question? Wouldn't I need a 'd' since it's asking how wide the river could be?
edit: SOrry I don't really understand what I'm even supposed to draw in the diagrams of the components
stressedgirl said:Can I get something step by step please? I drew the components but I don't get why I even have to have both an x and the y. I just have two sets of axes and a theta angle at 90degrees
2-d kinematics is a branch of physics that deals with the motion of objects in two dimensions. It involves analyzing the position, velocity, and acceleration of objects as they move in a two-dimensional plane.
The key variables in a 2-d kinematics problem are position (x and y), velocity (vx and vy), acceleration (ax and ay), and time (t). These variables are used to describe the motion of an object in two dimensions.
In 2-d kinematics, the motion of an object is described in two dimensions (x and y), while in 1-d kinematics, the motion is only described in one dimension (usually x). This means that in 2-d kinematics, there are two sets of equations for position, velocity, and acceleration, while in 1-d kinematics, there is only one set of equations.
Displacement is a vector quantity that represents the change in position from an initial point to a final point, while distance is a scalar quantity that represents the total length of the path traveled by an object. In 2-d kinematics, displacement takes into account both the change in x and y position, while distance only considers the total distance traveled.
Vectors can be used in 2-d kinematics to represent the direction and magnitude of an object's position, velocity, and acceleration. They are often used to break down motion in two dimensions into horizontal and vertical components, making it easier to solve problems involving angles and direction.