Ok so for A I did it correctly?
And it is therefore,
1/2((u(tb) (m(tb)-m(bb) + 2(m(bb))(u(bb))/(m(tb)+m(bb)))^2/g = h
?
Also sorry, but (nu) I meant coefficient of friction, since I normally hear it pronounced "nu"
Does that make it correct now?
As for the second one
I did
delta KE = Wnet
KEf = 0
KEf - KEi = -(nu)mad
-1/2(m+M)v^2 = -(nu)(m+M)d
v=sqrt(-2(nu)ad) - v of block + clay
pi = pf since momentum is conserved
m1v1 +m2v2 = m(1+2) v(1+2)
m1v1 + 0 = (m+M)sqrt(-2(nu)ad)
m1v1 = (m sqrt(-2(nu)ad)) (M sqrt(-2(nu)ad))
v1 =...
Well for the first one I tried that and got too big of an equation, can you help? I did
tb = tennis ball and bb= basketball
v=sqrt (2as)
v=sqrt (19.82h)
u(tb) = - sqrt (19.82h)
u(bb) = sqrt (19.82h)
1/2m(tb)u(tb)^2 + 1/2m(bb)u(bb)^2 = 1/2 m(tb)v(tb)^2 + 1/2m(bb)v(bb)^2
m(tb)u(tb)...
1) A tennis ball of mass mt is held just above a basketball of mass mb.
Their centers are vertically aligned. They fall through a height h, then there's an elastic collision with the ground which reverses the velcoity of the basketball while the tennis ball is still moving down because the...
Argh, how did I keep missing that! Thanks a ton! I never connected that A(T) and A(C) using Pythagoras would give the max acc. Definitely something worthwhile to know.
Yes... but I don't have the mass overall acceleration.
If it's the friction (since that's the max it can go before sliding)
then I'd have:
(6.86m) = sqrt ((ma)^2 + ((15^2 /40)m)^2)
= *after a few steps*
15.45 = -0.47m +2ma +a^2
Which means I can't do anything :/
Edit: unless of course you want...
Yes but doesn't it ask for only the maximum tangential acceleration?
Also what would I do with the 0.7mg then?
If I were to do that I'd have the sqrt((15/16.76)^2 + (15^2/40)^2), how would that be equal to the 0.7mg? :S
Thanks
A car goes around a 40m radius turn at a speed of 15m/s . If the coefficient
of static friction μs between the tires and the road is 0.7, what is the
maximum tangential acceleration the car could have before the wheels
start to spin?
OK IT'S MY LAST QUESTION AND I THINK I'M TOO TIRED TO...