Trajectory vs. time from parametric equations of motion

In summary, the conversation is about how to sketch the trajectory of a particle using its parametric equations of motion, with a time interval of 0 ≤ t ≤ 10. The value of x, y, and t can be found by isolating t and plugging it into one of the equations, or by using a graphing calculator or creating a table of values. The end goal is to plot x and y to visualize the trajectory.
  • #1
BruceW~
16
2

Homework Statement



Sketch the trajectory over the time interval 0 ≤ t ≤ 10 of the particle whose parametric equations of motion are given by X= t−3sint . And y = 4 − 3cost find the value of x,y,t

Remember that you should be in Radian mode!

Answer
Do you isolate the t first and plug it in into one of the function above and solve it ? Any suggestion, help and answer will be helpful.
 
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  • #2
You do not isolate t.

A graphing calculator can do it, or you can make a table of values:

t x y
0
0.5
1.0
1.5

...

Once you have a table, plot x and y in the usual way.
 
  • #3
Dr. Courtney said:
You do not isolate t.

A graphing calculator can do it, or you can make a table of values:

t x y
0
0.5
1.0
1.5

...

Once you have a table, plot x and y in the usual way.
ok, thank you
 

1. What is the difference between trajectory and time in parametric equations of motion?

In parametric equations of motion, trajectory refers to the path followed by an object in motion, while time refers to the duration of the motion. Trajectory is described by two variables (usually x and y coordinates), while time is described by a single variable.

2. How do you determine the trajectory from parametric equations of motion?

To determine the trajectory from parametric equations of motion, you can plot the x and y coordinates as a function of time. This will give you a visual representation of the path followed by the object in motion.

3. Can you calculate the velocity and acceleration from parametric equations of motion?

Yes, velocity and acceleration can be calculated from parametric equations of motion. Velocity is given by the first derivatives of the x and y coordinates with respect to time, and acceleration is given by the second derivatives.

4. How do you find the time of flight from parametric equations of motion?

The time of flight can be found by setting the y coordinate equal to zero and solving for the time variable. This will give you the time at which the object reaches the ground (assuming no obstacles or external forces).

5. What are some real-world applications of parametric equations of motion?

Parametric equations of motion are commonly used in fields such as physics, engineering, and robotics. They can be used to model the motion of objects such as projectiles, pendulums, and robots. They are also used in motion planning and control algorithms for vehicles and robots.

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