Transcribed Image Text: An explosion causes debris to rise vertically with an initial velocity of 112 feet per second

Transcribed Image Text: An explosion causes debris to rise vertically with an initial velocity of 112 feet per second. The function s(t) = – 16t + 112t describes the height of the debris above the ground, s(t), in feet, t seconds after the explosion.
a. What is the instantaneous velocity of the debris 1 second after the explosion? 3 seconds after the explosion?
b. What is the instantaneous velocity of the debris when it hits the ground?
a. The instantaneous velocity of the debris 1 second after the explosion is feet per second.
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