Recent content by agentd00nut

Ok, in my Physics 11 H class we did a lab with an inertial disk (a disk with a hub in the center, a string is attached to the hub like a huge half a yoyo where the yoyo is stationary and weights are the fingers falling down) and i need to be able to calculate the tension in the string for...

ok i have this problem A train traveling at a constant speed rounds a curve of radius 375 m. A chandelier suspended from the ceiling swings out to an angle of 18.0° throughout the turn. What is the speed of the train? so far i have 9.8sin(18)=(v^2)/375 v^2/R being force and i got V=33.7...

thank you so much for the help, i can get it from here

well KEi=0 since there is no movement, PEi = mgh so I am thinking 3.3cos(24)=h, but it is massless so i don't know what to do with it, and at the end, PE=0 and KE= .5mv^2, i don't know what to do when it is massless

oh sorry, I am new here, well i missed the lecture for this in class so I am kinda just poking in the dark trying to use my book and i came up with (3.3/9.8)cos(24) and i have no idea what to do with any of this, really frustrating, then i though maybe i could use something about KE being...

hi, i can't figure out which equation to use could anyone give me a nudge in the right direction with a formula please? thank you A 3.3 m long pendulum is released from rest when the support string is at an angle of 24° with the vertical. What is the speed of the bob at the bottom of the swing?