(a) A soccer player kicks a rock horizontally off a 44 m high cliff into a...

 

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(a) A soccer player kicks a rock horizontally off a 44 m high cliff into a pool of water. If the player hears the sound of the splash 3.19 s later, what was the initial speed given to the rock (in m/s)? Assume the speed of sound in air is 343 m/s. m/s (b) What If? If the temperature near the cliff suddenly falls to 0°C, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 3.19 s after kicking the rock? m/s (a) A soccer player kicks a rock horizontally off a 44 m high cliff into a pool of water. If the player hears the sound of the splash 3.19 s later, what was the initial speed given to the rock (in m/s)? Assume the speed of sound in air is 343 m/s. m/s (b) What If? If the temperature near the cliff suddenly falls to 0°C, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 3.19 s after kicking the rock? m/s

Answer rating: 100% (QA)

Solutions a To find the initial speed given to the rock we can use the equation of motion in the vertical direction h ut 12gt2 Where h height of the cliff 44 m u initial vertical velocity unknown g ac... View the full answer