Recent content by Kikki:)

Yes because 2\pir and that is also to find the radian. You take the radius and use that to go around the make up of the circle which is usualy 6.28 with just a circle. So the formula for radian = arc length/radius .

So if its positioned at (0,0) then that would mean that the radius is 4 and the 8. Yes there is because radius is half of the diameter. So this is basically an easy question but I'm just making it hard.

Homework Statement The Carteian coordinates of a point on a circle with its center at the origin are [0.40, 0.30]. What is the arc length measured counterclockwise on the circle from the positive x-axis to this point? Homework Equations The Attempt at a Solution Wouldn't they be...

Ohh so their somewhat the same just use it differently. Much thanks! :]

Much thanks for helping me figure it out! :]

But how do you exactly figure out the final velocity because I tried it as having it as zero. I also came up with a formula too that I think could work also related to yours. v2=Tension + mg

Oh so you would convert 12 then, thankyou very much. This helped me immensley!

Homework Statement The driver of a boat sets the throttle and ties the wheel, making the boat travel at a uniform speed of 12.5m/s in a circle with a diameter of 115m. Through what angular distance does the boat move in 4.00 minutes? What arc distance (in meters) does it travel in this time...

But so then wouldn't the second hand and the hour hand both be the same since they have to go by 12 intervals? Oh my bad, because its rads over seconds. Much Thanks! :]

So take 15 rev x 2 x pi rad/rev = 94.2 rads. Then take 94.2rad divided by 8.5s = 11.1 rad/s. Then for the distance you would take 11.1rads/s divided by 1.1ft.\alpha = a/r formula. Or would you use \omega = v/r ? Since it was 32times to wrap it around to convert it to rads you take 32 x...

Oh! So what your saying is to take 2 x pi divide by 3600 sec which is 22,608 sec. But the problem is asking to put the asnwer into rad/sec. So your saying to find it in revolutions/sec first and then convert it to rads/sec?

So basically a radian is the same as a radius but that the radius halfway and the length of that usually is used to make up ever how many wil go around the circle just like 2 pi r which would be 6.28 radians in a circle with involving the circumference? In a full circle without any numbers but...

Oh so it is asking for them to be seperate. Isn't it that because in 1hr it is 3600s. Or is that using it to convert it to seconds for part of the rad?

I also forgot to mention that it is a skate boarder going down a ramp and into a big loop, it was off of jackass, out teacher is made this equation from it by just estimating it. I'm mainly wanting to learn how to do the problems. :] So would you try to find the circumference first? So would the...

Homework Statement For the second handand the hour hand of a running clock, find the angular speed and the angular velocity. (in rad/sec) Homework Equations Circumference = 2 x pix radius 360 degrees = 1 revolution. The Attempt at a Solution I know that the circumference can...