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Fundamental Theorem Of Calculus Application Error

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The velocity of a falling object is modeled by v(t)=9.8tv(t)=9.8t m/s for 0≤t≤40 \le t \le 4 seconds. To find the object’s displacement over this interval, a student attempts to compute the definite integral of v(t)v(t). The student finds an antiderivative of v(t)v(t) but reports only the value of the antiderivative at t=4t=4, failing to subtract the value of the antiderivative at t=0t=0. What is the primary error in the student’s calculation?

A

They mistakenly computed the average velocity instead of computing the definite integral over the interval.

B

They performed integration on the wrong function by confusing velocity and acceleration.

C

They used the wrong antiderivative by incorrectly applying the power rule.

D

They omitted evaluating the antiderivative at the lower limit and subtracting it from the evaluation at the upper limit, thus failing to apply the Fundamental Theorem of Calculus properly.

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