Recent content by Lapse

I see your point. What then would be the most logical way to derive probabilities for this scenario? If we have two drivers with no previous experience, and two cars with no previous experience, then we might say that all four factors have a starting Elo of 1000. If Driver A with Team A then...

You may.

I am trying to determine the likelihood of a driver winning a race based on an associated rating as well as the team he drives for. The probability that Driver A beats Driver B = .8504 The probability that Team A beats Team B = .7576 How do I combine these two probabilities, where the outcome...

Thank you for your reply Mark, I am positive that the second equation is for a different problem because it is delineated as (2); instead of being a part of problem 1. However, maybe we should switch over to the 2nd problem if we can't discover the answer to the first one. So, do I start by...

Thank you for your reply Ssnow, The second equation is a separate problem; apologies for being unclear. We can ignore that. So for now we are just dealing with the discrete problem. Unfortunately, I am unsure what the T{} operator is for. I would guess that it is an arbitrary value...

A system is linear if it satisfies the properties of superposition and homogeneity. Superposition: adding the inputs of two systems results in the addition of the two outputs. Ex) x1(t) + x2(t) = y1(t) + y2(t) Homogeneity: multiplying the input by some scalar value is equal to the output...

Understood. So would the other equation only be used for finding horizontal distance since gravity doesn't affect the x-component?

Okay, I solved the problem by using Δy = V0yt + 1/2(a)(t2) My only question, then, is why doesn't the other equation I used work? And when should I use that other equation? Thanks.

Homework Statement Homework Equations The kinematic equations--namely, Sf = S0 + V0Δt The Attempt at a Solution [/B] I am a bit confused as it seems this problem is very straight-forward. My known variables: X0 = 0m Y0 = 1.7m Δt = 3.92s V0 = 29m/s Θ = 60ο Yf = ? So, I just use the above...

Homework Statement Homework Equations Vy2 = Vyo2 + 2ayt y = 1/2(Vyo + Vy)t The Attempt at a Solution So I have "solved" this problem with both the equations above. Using the Vy2 equation I get the result of 32.83m/s. Using the other equation I get a result of zero, because Δy = (0 - 55) =...

Thanks. I knew it was something silly.

Whoops. Sorry, I should've had this picture there too:

Homework Statement Homework Equations v = I + j + k v = d/t The Attempt at a Solution I thought the answer was as simple as: v = 63i + 0j + 0k, since the car only has motion in one direction... ...but I got it wrong, so clearly I'm missing something here.

The time constant, also called Tau, is found in the equation: τ = R x C, where R is resistance and C is capacitance As mentioned above it is better to show your attempts at a solution first and then these "Smart-as-heck" people will steer you in the right direction.