A boy playing on the roof of a 10m high building throws a ball with a speed

A boy playing on the roof of a 10m high building throws a ball with a speed of 10 m/s at an angle of 30⁰ with the horizontal. How far from the throwing point will the ball be at the height of 10 m from the ground(g=10 ms⁻²)?

Options

(a) 8.66 m
(b) 5.20 m
(c) 4.33 m
(d) 2.60 m

Correct Answer:

8.66 m

Explanation:

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