Question Number 53686 by ajfour last updated on 25/Jan/19

Commented by ajfour last updated on 25/Jan/19

Commented by Tinkutara last updated on 25/Jan/19

Commented by ajfour last updated on 25/Jan/19

Commented by Tinkutara last updated on 25/Jan/19

Commented by ajfour last updated on 25/Jan/19
![not right process, sir; soon v_x develops , so you must take this into consideration, moreover, v^� is asked for as a function of z, and not time t[ v^� (t) might be still more difficult].](https://www.tinkutara.com/question/Q53788.png)