I need help with these questions :(see image )

Physics

1 answer:

maw [93]3 years ago

7 0

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>

$\huge\boxed{Theta=25.67}$

Range = R = 78m

Initial Velocity = $V_i$ = 30m/s

Angle(theta) = ?

<h2>_____________________________________</h2><h3>SOLUTION:</h3>

The Range is given by,

$R =\frac{V_0^2}{g}Sin2(theta)\\\\78 = \frac{30^2}{10}Sin2(theta)\\\\Sin2(theta) = \frac{780}{900}\\\\Sin2(theta) = \frac{13}{15}\\\\Sin(theta) = \frac{13}{30}\\\\theta = Sin^{-1}\frac{13}{30}\\\\theta = 25.67^0$

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2><h2 />

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