Thursday

April 24, 2014

April 24, 2014

Posted by **Anonymous** on Monday, October 26, 2009 at 4:43pm.

- math -
**Reiny**, Monday, October 26, 2009 at 5:10pmHave you learned the formula

arc length = r(theta) where theta is in radians ?

then theta = arclength/radius

= 1.2/2.4 radians

= 1/2 radians

we know

pi radians = 180º

1 radian = (180/pi)º

.5 radians = (90/pi)º = appr. 28.65º

**Related Questions**

Calculus - A pendulum swings through an arc length of 1120 cm (Swing #1). With ...

Calculus Hard Question - A pendulum swings through an arc length of 1120 cm (...

Physics - A 50- kg child sits in a swing suspended with 3.8- m-long ropes. The ...

Physics PLEASE HELP - A 80- kg child sits in a swing suspended with 2.6- m-long ...

PHYSICS PLEASE HELP - A 80- kg child sits in a swing suspended with 2.6- m-long ...

Physics - A 40 kg child sits in a swing suspended with 2.5 m long ropes. The ...

physics - A 100-N child is in a swing that is attached to ropes 1.90 m long. ...

physics - A 120 N child is in a swing that is attached to ropes 2.20 m long. ...

Physics - A 40.0kg child is in a swing that is attached to ropes 2.00m long. ...

Physics Energy and Work Done - A 390-N child is in a swing that is attached to a...