assume a level ground with no atmospheric resistance.
time of flight for the first half (rising) is t = (v-u)/g = 0.666 sec, sot he time of flight for the last half descent is also 0.666 sec. Total time is thus 1.333 sec.
with no reistance to motion in the x-axis the distance traveled is...
panthomjay is right.
understand that the centripetal acceleration along the x-axis will be the resultant of the weight of the chair and the tension in the chain. when this ia at the required angle you will be able th calculate Fcentripetal and also tangential speed - do you know the mass...
whilst we are successful in colliding matter to identify yet further fundamental particles, and being aware there is a limit on speed due to mass end energy problems, and given that matter and mass are interchangeable, might it be possible to collide a single photon with another (this must rely...
simply put: the cooling compartment must be at the top - when slightly warmer air in the fridge rises (from foods or open door etc), it will come into contact with the cooling fins at the top. Here it will loose energy, become more dense (for a given volume) and consequently sink in the warmer...
NOOOOOOOOOOOOO
ONLY EVOLUTION SHOULD BE TAUGHT. next thing we will be teaching about santa claus - and who knows, in a couple of thousand years there will be a nice big book extoling his virtues and how we should pray for our presents.:cry:
to russ watters
Dis I say that I had misconceptions? If they are why should they be mine? Did I say that America was not advanced?
Why should these questions say anything about myself? The response will say more about the respondent. Bold print ?
"In other words the force grows linearly as you move towards the surface."
I picked up on this and made the assumption that it was moving towards the surface from the outside. (incorrect assumption). which is why I mentioned 1/d^2