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Homework Statement
Hi guys. Just wondering if anyone could help me with Q7 part a) on the pdf I have attached below. I think my working are not correct but I cant see other way. If I add 6. and 7. together I would get an ans in terms of what the question is asking but I am not sure if that is correct?
[ note: cropped image inserted by moderator ]
Homework Equations
1.$$y=y_0+v_{0y}(t)+\frac{1}{2}at^2$$
2.$$E_y=\frac{F_y}{q}$$
3. $$F_y=mg$$
The Attempt at a Solution
4.$$y_0=0, v_y=0 ,\uparrow=+, v_{x0}$$
5.$$E_y=\frac{mg}{q}, g=\frac{E_yq}{m}$$
So by subbing in the 4 and 5 values into 1 I get two equations as shown below:
6.$$y=\frac{1}{2}g(\frac{d}{v_{x0}})^2$$
and
7.
$$y=\frac{1}{2}(\frac{E_yq}{m})(\frac{d}{v_{x0}})^2$$
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