Hello everyone,
I recently encountered that dreaded moment when walking where you get a face full of an seemingly invisible spider web. It got me thinking about why these webs are so difficult for humans to distinguish; unless of course we see them at the correct angle. Do they somehow bend...
oh! it's a kinematics question? so vf^2=vi^2*2ax
so v final = 0 because it comes to a rest
v initial = (2 x 10^3)^2
x = .15m
solving for a we get
a = 1.33 x 10^7 which is the correct answer, thank you.
Why do we not into account the electric field in this type of question? is there...
A proton initially moves left to right along the x-axis at a speed of 2 x 10^3 m/s. It moves into an electric field, which points in the negative x direction, and travels a distance of 0.15m before coming to rest. What acceleration magnitude does the proton experience?
equations
E = kq/r^2...