Dynamics question-answer (classic)

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In summary, the conversation involves a person asking for help with a dynamics question and being directed to post their question on a forum. The question involves finding the equation of the street for a rolling sphere and the responder suggests using the X2 and X2 buttons for formatting. The original poster also mentions wanting all dynamic questions and answers on the same page and the responder suggests creating separate threads for each question. The original poster also asks if their equation is correct and the responder suggests that there may be a mistake with a minus sign on the bottom.
  • #1
pymn_nzr
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dynamics question-answer (classic)

send your dynamics question here

problem1:

we have one globe on the gradient...
(rolling)
velocity in t=0 = V(0) i
radius=R
I=2/5 mR^2

find equation street?
 

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  • #2
welcome to pf!

hi pymn_nzr! welcome to pf! :smile:

(try using the X2 and X2 buttons just above the Reply box :wink:)

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:

(btw, what does "slither" mean? is the sphere rolling without slipping? :confused:)
 
  • #3
hi pymn_nzr! :smile:

(please always reply on the thread, not by private message :wink:)
pymn_nzr said:
I solve it…its so easy…but I want all the dynamic questions are in this page( with answers)

If you have more dynamic questions put them in this page.

your english is a little difficult to understand :confused:

if you have more questions that you need help with, just start a new thread (preferably one for each question) :smile:
 
  • #4
is it correct?

[tex]Y=\frac{g\sin \alpha }{2V_{0}^{2}(1-\frac{I}{mR^{2}})}X^{2}[/tex]
 
  • #5
pymn_nzr said:
is it correct?

[tex]Y=\frac{g\sin \alpha }{2V_{0}^{2}(1-\frac{I}{mR^{2}})}X^{2}[/tex]

i don't have time to check it properly :redface:, because I'm going out in a few minutes,

but i think that minus on the bottom should be a plus
 

FAQ: Dynamics question-answer (classic)

What is dynamics?

Dynamics refers to the branch of physics that deals with the study of motion and the forces that cause it.

What is the difference between kinematics and dynamics?

Kinematics is the study of the motion of objects without considering the forces that cause it, while dynamics takes into account the forces that cause motion.

What are the laws of dynamics?

The three laws of dynamics, also known as Newton's laws, state that an object will remain at rest or in uniform motion unless acted upon by an external force, the force acting on an object is equal to its mass times its acceleration, and for every action there is an equal and opposite reaction.

How do forces affect motion?

Forces can cause an object to change its speed, direction, or both. They can also cause an object to accelerate or decelerate.

What is the role of dynamics in engineering?

Dynamics plays a crucial role in engineering as it helps engineers understand and predict how objects will behave under different forces and conditions. This knowledge is used to design and improve structures, machines, and systems.

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