Recent content by bcaie16

Homework Statement Evaluate lim h->0 (f(4+h)-f(4))/h given f(x)=|x-4|-4 2. The attempt at a solution Not too sure how to do this with absolute values, I've tried just subbing in small values for h, which gave me -1, but as this is an online question for marks, I am not too sure. Any...

Ok being completely new to physics, I am kind of lost. I am not really sure to how to get a general equation. Should they be in relation to time or distance

Ok i figured that the respective equations would be ∆t= 4.2 ∆D +75, and 75= -∆t +/- square root ∆t -2.28/2

I figured I would have to use the quadratic formula. I wasn't sure how to frame it kinematics wise. What are the a, b, and c values respectively in terms of velocity, acceleration, etc.

Homework Statement In a long distance race, Michael is running at 3.8 m/s and is 75 m behind Robert, who is running at a constant velocity of 4.2 m/s. If Michael accelerates at 0.15 m/s^2, how long will it take him to catch RobertHomework Equations D=vi(delta)t + 1/2a(delta)t^2 etcThe Attempt...