فيزياء: أي استفسار أول سؤال

[ريآآنوو]

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يعطييك الف الف عافيه حبيبي علي
من جــد شررف للزهاريـن آستاذ علـي
تيب عندي كذا سؤال وكلها بشبتر 4 ...,,,

الآول ........,,~~ْْ

the army fired artillery ls at the enemy 1200 m from the coast of the city , if the speed of the missile 108.4m/s

a) what is the angle that must be launched by the l to reach to the enemy..

b) What is the time required for that ..

السؤال الثاني ...؟؟
A l has been fired at speeds of 15 m/s and with an angle of 45ْ with the horizontal. It will reach a maximum height of ;

السؤال الثالث ...؟؟

A goalkeeper kicked the ball to another player with angle of 30ْ with the horizontal , if the player 45m away , the speed which the goalkeeper kicked the ball with is :