Saturday

November 22, 2014

November 22, 2014

Posted by **Nikita** on Monday, October 26, 2009 at 2:24pm.

- Physics -
**MathMate**, Monday, October 26, 2009 at 2:41pmDid you get the previous problem?

http://www.jiskha.com/display.cgi?id=1256570375

If you have questions, don't be shy to make a follow-up.

Basically, the centripetal acceleration has to offset gravity, 9.8 m/s².

Since the centripetal acceleration is given by v²/r, so we equate the two quantities to get

v²/r = 9.8

v=sqrt(9.8*r) m/s

= sqrt(9.8*13.3) m/s

= 11.4 m/s.

**Answer this Question**

**Related Questions**

physics - A roller coaster ride includes a circular loop with radius R = 13.1 m...

Physics - A roller coaster ride includes a circular loop with radius R = 11.6 m...

physics - 3.A roller coaster has a vertical loop with radius 27.1 m. With what ...

physics - A roller coaster has a vertical loop with radius 17.9 m. With what ...

Physics - A roller coaster works by gravitational energy. The coaster car is ...

Physics - A car is doing a loop-the-loop. The loop has a radius of .4m. Assume ...

physics - Part of a roller-coaster ride involves coasting down an incline and ...

Physics- Elena please help! - Part of a roller-coaster ride involves coasting ...

physics - A roller coaster has a loop the loop with a loop radius of 14.5 m. ...

physics - An 840 Kg roller coaster car is launched from a giant spring of ...