- #1
Ishida52134
- 139
- 0
Homework Statement
A giant wheel, 40m in diameter, is fitted with a cage and platform on which a man can stand.
The wheel rotates at such a speed that when the cage is at X (as shown) the force exerted by
the man on the platform is equal to his weight. The speed of the man is:
X is located at the top of the vertical wheel.
A. 14m/s
B. 20m/s
C. 28m/s
D. 80m/s
E. 120m/s
Homework Equations
Fn + Fg = ma
The Attempt at a Solution
Well it states the normal force is mg. So I got 2mg = m(v^2/r)
which I got that v = 28 m/s.
But the answer key says it's b.