A student drops a lit firecracker off the roof of abuilding


A student drops a lit firecracker off the roof of abuilding with an initial velocity vo=0. She hearsit explode 10s later. The speed of sound is 330.

How long did it take the firecracker to reach the explosion site?

Calculate the vertical displacement of the firecracker at the instant it blew up?

What is its speed when it exploded?

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Physics: A student drops a lit firecracker off the roof of abuilding
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