Question: A 100-kips plane is initially moving with a constant speed of 540 mph at a constant altitude of 5 miles. The plane suddenly suffers

A 100-kips plane is initially moving with a constant speed of 540 mph at a constant altitude of 5 miles. The plane suddenly suffers from structural failure and splits into two parts. Given that a 25-kips part is observed to hit the ground after 13 seconds, determine the altitude of the second part in miles at the instant the first part hits the ground.

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