What kind of motion is this? (bicycle velocity vectors)

[rudransh verma]

Homework Statement

A body is due east at 30meters of the pole at which instant it has velocity in south direction. After 30sec it’s position is 40m due north of pole at which instant it’s velocity vector is in east direction. Both velocity vectors are 10m/s.

Relevant Equations

Delta r=r2-r1
v1=v2=10 m/s

How the heck the bicycle reach from point A to point B with that velocity vector directions?

 

[berkeman]

What exactly is the question? I can think of one type of motion that will do this, but without further contraints, it seems like there are infinitely many solutions...

 

[rudransh verma]

can think of one type of motion that will do this

Which one

 

[berkeman]

As I said, the problem seems ill-defined. Can you post the whole question word-for-word?

 

[rudransh verma]

As I said, the problem seems ill-defined. Can you post the whole question word-for-word?

12

 

[berkeman]

It would be better if you could post it right-side-up...

 

[rudransh verma]

It would be better if you could post it right-side-up...

 

[berkeman]

So the question is simpler than what you ask in the thread title. All you have to do is the vector subtractions, etc. to figure out the questions. Can you show your work on calculating parts (a) and (b)?

 

[rudransh verma]

So the question is simpler than what you ask in the thread title. All you have to do is the vector subtractions, etc. to figure out the questions. Can you show your work on calculating parts (a) and (b)?

View attachment 291560

 

[berkeman]

Please post your work in LaTeX. Thank you.

 

[rudransh verma]

Please post your work in LaTeX. Thank you.

how do i setup latex. please provide a easy way. i don't really understand the guide.

 

[berkeman]

how do i setup latex. please provide a easy way. i don't really understand the guide.

The LaTeX Guide is pretty straightforward. It can also help if you see how some of your equations can be constructed using LaTeX. Remember that a double-# delimiter is used at the start and end of each in-line equation, and a double-$ is used at the start and end of each math line that is on its own (not in-line with text).

Take this equation from the 2nd page you posted an image of above:

It's kind of hard for me to read, but I think it says this:

$$\Delta \vec v = \frac{40 \hat j - 30 \hat i}{30}$$

You can click "Reply" in the lower right corner of my post to see what the LaTeX is that makes that equation.

(Note that if your post is the first LaTeX in the thread, you have to refresh your browser page after posting to get the LaTeX to render)

 

[rudransh verma]

@berkeman i have written it down again.
@ergospherical @PeroK @haruspex can you verify guys?