Problem: A soccer player kicks a rock horizontally off a W 40.0-m-high cliff into a pool of water. If the player hears the sound of the splash 3.00 s later what was the initial speed given to the rock? Assume the speed of sound in air is 343 m/s.

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A soccer player kicks a rock horizontally off a W 40.0-m-high cliff into a pool of water. If the player hears the sound of the splash 3.00 s later what was the initial speed given to the rock? Assume the speed of sound in air is 343 m/s.

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Our tutors have indicated that to solve this problem you will need to apply the Projectile Motion: Horizontal & Negative Launch concept. If you need more Projectile Motion: Horizontal & Negative Launch practice, you can also practice Projectile Motion: Horizontal & Negative Launch practice problems.