yes Hb = Yo and Vb is the launch velocity
k for Ein=Eout, i did 1/2kx[SIZE="1"]s^2=1/2kmv^2 and got an efficiency of 98.7%
Vb ideal is found by V = Squareroot((KXs^2)/m) where Vb is 23.24m/s
but i still can't find the X ideal
here what i gotten for the approach to X: X=Vo/Cos(theta)t...
Homework Statement
Given
h[SIZE="1"]b (m) = 1 (Height of point B)
theta = 30 (degrees - launch angle)
k (N/m)= 60 (assume the graph is linear)
m (g) = 250 (balloon mass)
1. If Xs (cm) = 150 (pull distance)
a) Find the estimated Vb and the landing X (ideal case where Ein =Eout)
b) The...