Gravitron is doing one revolution in 15 s.
so, w = (1 / 15) rps
w = (1 / 15)*2*pi = 0.4188 rad / s
(b)
Speed of steve,
v = w*r
v = 0.4188 * (10 / 2)
v = 2.094 m/s
(c)
Centripetal acceleration of steve,
ac = v^2 / r = (2.094)^2 / 5
ac = 0.877 m/s^2
(d)
Normal force exerted by walls,
N = m*v^ / r = m*ac
N = 90*0.877
N = 78.95 N
(e)
When steve starts to slip downwards with 4 m/s^2,
gravitational force on steve, Fg = m(g - a)
Fg = 90 (9.8 - 4)
Fg = 522 N
2. A brav e 90 kg man, named Steve, agrees to give a Gravitron a test...