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The velocity function, in feet per second, is given for a particle moving along a straight line.

v(t) = t2 − t − 182, 1 ≤ t ≤ 15
(a) Find the displacement
(b) ) Find the total distance that the particle travels over the given interval.

User Webjockey
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2 Answers

6 votes

Final answer:

The displacement of the particle is -2301 feet and the total distance traveled is 2301 feet.

Step-by-step explanation:

(a) Displacement is calculated by integrating the velocity function. To find the displacement, we integrate the velocity function over the given interval (1 ≤ t ≤ 15). The integral of t^2 - t - 182 is (1/3)t^3 - (1/2)t^2 - 182t. Evaluating this integral from 1 to 15 gives the displacement as follows:

Displacement = [(1/3)(15)^3 - (1/2)(15)^2 - 182(15)] - [(1/3)(1)^3 - (1/2)(1)^2 - 182(1)] = 2025 - 1125 - 2730 + 91 - (-182) = -2301 feet

(b) Total distance is the sum of the absolute values of the displacement. To find the total distance, we take the absolute value of the displacement:

Total distance = | -2301 | = 2301 feet

User Scenia
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4.0k points
5 votes

Answer:

a)2

B)2

Step-by-step explanation:

User Mooseman
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2.9k points