ya you i get it ek... and i know the difference between physics sums and apples... that's ok... i know how to do it that way but is that quite right physically ? Thats my problem I don't get the physical significance of it otherwise average is kid's play.. btw this is not my homework or anything...
consult a map... ? Thats not given in the problem.. and i got a serious problem u say ? Well u might be right. I still do not understand what to do... This sum is from Fundamentals Of Physics - Resnick Halliday Walker 1st chapter.. and by the way i missed out on some info... ie.. On the way back...
isnt normal force = 18g ? and the angle is cos inverse of (27/43) ? what i did is 43cosx = 27 for the angle ... and mg = normal force. Is this correct ?
you get two dynamical equations... In which there are only two unknowns... Tension and acceleration... frictional force is known... Two equations two variables...Voila ! Theres your answer
hi julie,
im new to this forum anyway what I think you should do is firstly try to get on his good side. Try making a direct suggestion or something like that. Anyway for your project why not try Michelson's Interferometer. But that wouldn't solve an everyday problem... So you could go in for...
Average velocity ?
You're driving an interstate 10 from Sn Antonio to Houston half the time at 55km/hr and the other half at 90km/hr . What is your average speed a) from San Antonio to Houston b) from Houston back to San Antonio c) for the entire trip ? What is your average velocity for the...
How about just doing it the hard way eh ?
Try deriving an expression for the angle of banking. while doing so try to take your problem into it. Btw I'm new too...