How to solve

$($c$)x=rcos=4cos60=2$

$y=rsin=4sin60=3\mathrm{.}46$

$z=2$

:$.P_2(2,3\mathrm{.}46,2).$

The rest of answer is $(1+*$

Ans $E=77\mathrm{.}5a_x-31a_z\frac{v}{m}$

$4\mathrm{.}4$

Home work