please help! thanks in advance!
2006-12-30 07:40:29 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Angle (theta) in radians = Radial distance/Radius = S/R
Given = theta = 90 radians
90 = S / R
S = 90 R
RADIAL DISTANCE TRAVELLED = 90 TIMES RADIUS
2006-12-30 07:45:56 · answer #1 · answered by Sheen 4 · 0⤊ 1⤋
radians are a measure of angle, like degrees. To know how much distance is traveled, you must know distance from rotational axis. If the distance is zero, then you are just twisting 0.5 * pi degrees (2*pi radians in a circle, 360 degrees in a circle).
2006-12-30 15:48:52 · answer #2 · answered by cfpops 5 · 0⤊ 1⤋
90 times the distance from the center.
2006-12-30 16:13:53 · answer #3 · answered by amateur_mathemagician 2 · 0⤊ 0⤋
Ï radians = 180Ë
1 rad = 180Ë/Ï
==> 90 rad = 90*180Ë/Ï = 5156.2Ë
==> 5156.2Ë/360Ë = 14.3
You end up at going around a circle 14.3 times.
Circumference of a circle (C) is: 2Ïr = Ïd
r = radius
d = diameter
So, your distance traveled is14.3*C
If that helps.
2006-12-30 17:26:24 · answer #4 · answered by Anonymous · 0⤊ 0⤋
6000 mi at the equator......... 0 at the poles
2006-12-30 16:00:14 · answer #5 · answered by First Littleleo 2 · 0⤊ 1⤋
perimeter= 2*pi*r/4
Answer:pi*r / 2
r is radius
2006-12-30 15:55:41 · answer #6 · answered by iyiogrenci 6 · 0⤊ 1⤋