My Math Forum Review help 2

 Physics Physics Forum

February 25th, 2017, 08:59 AM   #1
Member

Joined: Feb 2014

Posts: 91
Thanks: 1

Review help 2

Hello I'm trying to review previous work. This question has me a little stumped. What I tried to do is

First I draw a circle, then I mark two points on the bottom and top of the circle. Then I draw the force of gravity and the force of the seat pushing up against gravity but how am I suppose to make an equation from this?

Quote:
 1. A passenger on a carnival Ferris wheel moves in a vertical circle of radius R with a constant speed v. The seat remains upright during the motion. Find expressions for the force the seat exerts on the passenger when at the top of the circle and when at the bottom of the circle.

February 25th, 2017, 10:09 AM   #2
Math Team

Joined: Jul 2011
From: Texas

Posts: 2,721
Thanks: 1375

Quote:
 1. A passenger on a carnival Ferris wheel moves in a vertical circle of radius R with a constant speed v. The seat remains upright during the motion. Find expressions for the force the seat exerts on the passenger when at the top of the circle and when at the bottom of the circle.
$|F_{net}| = |F_c| = \dfrac{mv^2}{r}$ directed toward the wheel's center at both the top & bottom of the wheel

at the bottom of the wheel ...

$F_c = N_B - mg$

$\dfrac{mv^2}{r} = N_B - mg \implies N_B = \dfrac{mv^2}{r} + mg$

at the top of the wheel ...

$F_c = mg - N_T$

$\dfrac{mv^2}{r} = mg - N_T \implies N_T = mg - \dfrac{mv^2}{r}$
Attached Images
 F_c_wheel.jpg (6.2 KB, 0 views)

 Tags review

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post The_Ys_Guy Physics 7 February 6th, 2017 06:25 PM 256bajigur Trigonometry 0 May 19th, 2014 08:36 PM jkh1919 Algebra 7 December 13th, 2012 10:16 AM CoolX Advanced Statistics 0 June 16th, 2010 04:35 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top