Recent content by Brocoly

Oh so the moment of inertia is 5.03e8 when when the mass of the station is combined with the mass of people?

Homework Statement A space station shaped like a giant wheel has a radius 95.0 m and a moment of inertia of 5.03✕ 10^8 kg · m2. A crew of 150 lives on the rim, and the station is rotating so that the crew experiences an apparent acceleration of 1g. When 100 people move to the center of the...

Ok so what i did to try to find it is i took sin(28)*6 to find the height of at the start which is 2.82m Then i did mgh=1/2mv^2 + 1/2Iw^2 which worked out to be 2gh=v^2 I got v as 7.438m/s and from that i did v/r=w so i got w as 37.2m/s I just need to convert it to rad/s

Ok i think i got it. v=rw x=r(theta) a=r(angular a) (9.81)(sin(28))/(0.20)=angular a=23 (theta)=6/0.20=30 w^2=2(23)(30) [w=37.1] is this correct?

Homework Statement A uniform solid sphere, of radius 0.20 m, rolls without slipping 6.0 m down a ramp that is inclined at 28° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest? Homework Equations w=(theta)/t a=w/t v=r(theta)/t I...

Homework Statement A uniform solid sphere, of radius 0.20 m, rolls without slipping 6.0 m down a ramp that is inclined at 28° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest? Homework Equations KE=1/2Iw^2 PE=mgh I don't know what...