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Nastasia [14]
2 years ago
9

The average velocity of a tennis ball is measured during serving and found to be 216 km/hr.

Physics
1 answer:
icang [17]2 years ago
7 0

Answer:

The time between hitting the ball and meeting the ground is t=0.33\: s

Explanation:

We have a semi parabolic motion here. We know that the initial speed 216 km/h or 60 m/s in the x-direction.

So we can use the following equation:

v=\frac{\Delta x}{\Delta t}

60=\frac{20}{t}

t=\frac{20}{60}

t=0.33\: s

hope it helps you!

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