Help AP physics C mechanical

In summary, the position of a moving particle in an xy plane is given by r=(2.00(t^3) -5t)î+ (6.00-7.00(t^4) )j, with r in meters and t in seconds. In this problem, we are asked to calculate the position, velocity, and angle of the particle at t=25 seconds, using unit notation. We also need to show our understanding of the relationship between position and velocity. To solve this problem, we will need to convert from rectangular to polar notation and use relevant equations to find the angle. It is important to put in effort and show our understanding in order to receive help with our schoolwork.
  • #1
Daretodaredar
1
0

Homework Statement


the position "r" of a moving particle moving in an xy plane is given by r=(2.00(t^3) -5t)î+ (6.00-7.00(t^4) )j with r in meters and t in seconds. In unit notation calculate:
A) R
B) Velocity
C) R when t is 25 seconds
What is the able between the positive direction of the x-axis and a line tangent to its path at t=25 s


Homework Equations



I have no clue what to do!

The Attempt at a Solution

 
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  • #2
Daretodaredar said:

Homework Statement


the position "r" of a moving particle moving in an xy plane is given by r=(2.00(t^3) -5t)î+ (6.00-7.00(t^4) )j with r in meters and t in seconds. In unit notation calculate:
A) R
B) Velocity
C) R when t is 25 seconds
What is the able between the positive direction of the x-axis and a line tangent to its path at t=25 s


Homework Equations



I have no clue what to do!

The Attempt at a Solution


Welcome to the PF.

What is "unit notation"?

And surely in the Relevant Equation section, you could list the method for converting from rectangular to polar notation, since you are asked to find an angle. And what is the relationship between the position R(t) and the velocity V(t) in general?

You need to show some effort on your schoolwork questions, if you want to receive tutorial help here.
 

1. What topics are covered in AP Physics C: Mechanics?

The topics covered in AP Physics C: Mechanics include kinematics, Newton's laws of motion, work, energy, power, momentum, circular motion, and gravitation. Additionally, students will learn about rotational motion, simple harmonic motion, and mechanical waves.

2. What is the format of the AP Physics C: Mechanics exam?

The AP Physics C: Mechanics exam consists of two sections: multiple-choice and free-response. The multiple-choice section has 35 questions and accounts for 50% of the total score. The free-response section has three questions and accounts for the remaining 50% of the total score.

3. How can I prepare for the AP Physics C: Mechanics exam?

To prepare for the AP Physics C: Mechanics exam, it is important to have a strong understanding of the fundamental concepts and equations. Practice with past exams and review materials, such as textbooks and study guides, can also help improve your understanding and test-taking skills.

4. Is it necessary to take calculus before taking AP Physics C: Mechanics?

While it is not a requirement, it is highly recommended to have a strong understanding of calculus before taking AP Physics C: Mechanics. Many of the concepts and equations in this course involve the use of calculus, and it will be difficult to fully grasp the material without prior knowledge of it.

5. What is the scoring system for the AP Physics C: Mechanics exam?

The AP Physics C: Mechanics exam is scored on a scale of 1-5, with 5 being the highest possible score. Most colleges and universities will grant college credit for a score of 3 or higher, but the specific policies vary. It is best to check with your desired college or university for their AP credit policies.

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