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12 November, 07:33

Two balls are thrown from the same height as shown. the red ball is thrown with velocity v⃗ v→ in the vertical direction. the blue ball is thrown with velocity 2v⃗ 2v→ at an angle of 30o with respect to the horizontal. which ball will go higher?

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  1. 12 November, 08:15
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    Answer: both balls will go the same height.

    Explanation:

    The height is related only with the vertical velocity.

    With the angle of 30° respect the horizontal you can calculate the vertical velocity from the sine ratio:

    sin (30°) = vertical speed / speed = > vertical speed = speed * sin (30°)

    => vertical speed = speed * 0.5 = (2v) * 0.5 = v.

    That means that both balls are thrown with the same vertical velocity, therefore both balls will go the same height.
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