The horizontal velocity is 17.32 m/s and the vertical velocity is 10 m/s.

To calculate the horizontal velocity, we can use the following formula:

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v_x = u_x * cos(theta)

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Where:

• v_x is the horizontal velocity

• u_x is the initial velocity

• theta is the angle of projection

In this case, we have:

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v_x = 20 m/s * cos(30°)

= 17.32 m/s

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To calculate the vertical velocity, we can use the following formula:

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v_y = u_y * sin(theta) + g * t

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Where:

• v_y is the vertical velocity

• u_y is the initial velocity in the vertical direction

• g is the acceleration due to gravity (9.8 m/s^2)

• t is the time of flight

In this case, we have:

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v_y = 20 m/s * sin(30°) + 9.8 m/s^2 * t

= 10 m/s

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The time of flight can be calculated using the following formula:

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t = 2 * v_y / g

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In this case, we have:

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t = 2 * 10 m/s / 9.8 m/s^2

= 2.04 s

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Therefore, the horizontal velocity of the ball is 17.32 m/s and the vertical velocity is 10 m/s.