Problem 55PE

Suppose you drop a rock into a dark well and, using precision equipment, you measure the time for the sound of a splash to return. (a) Neglecting the time required for sound to travel up the well, calculate the distance to the water if the sound returns in 2.0000 s. (b) Now calculate the distance taking into account the time for sound to travel up the well. The speed of sound is 332.00 m/s in this well.Step 1 of Step 4 </p>

The object in free fall experiences an acceleration due to gravity downwards is -9.81 m/s2

Step 2 of Step 4</p>

Given

𝑎 = 𝑔 = −9.81 𝑚/𝑠 2 is acceleration,ℎ = 2.00 m, 𝑦 = 7.50 m, 𝑡 = 1.30 s, 𝑣0 =?

The initial speed Suppose to be V1 that is the velocity at 7.50 m off the ground and V2 is the velocity at 9.50 m off the ground.