A ring shaped space station with a radius of 1km is spinning,so that the speed o

Question

A ring shaped space station with a radius of 1km is spinning,so that the speed of the rim is 50 m/s. A 60kg man sits on theinside of the rim. What is his apparent weight?
A)150000N B)3000N C)588N D)150N E) 3N Hint: Apparent wieght = m*centripetal acceleration =mv2/r Check your units: m = 60kg, v = 50m/s, r = 1km = 1000m. A ring shaped space station with a radius of 1km is spinning,so that the speed of the rim is 50 m/s. A 60kg man sits on theinside of the rim. What is his apparent weight?
A)150000N B)3000N C)588N D)150N E) 3N Hint: Apparent wieght = m*centripetal acceleration =mv2/r Check your units: m = 60kg, v = 50m/s, r = 1km = 1000m.

Explanation / Answer

The apparent weight W = m(centripetal acceleration)                                W = mv2 /r = (60kg)(50m/s)2 / (1000m)                                    = 150N

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