Suppose the Distance $s$ (In Feet) Covered by a Car Moving Along a Straight

question 141

Multiple Choice

Suppose the distance $s$ (in feet) covered by a car moving along a straight road after $t$ sec is given by the function $s = f ( t ) = 3 t ^ { 2 } + 13 t$ . Calculate the (instantaneous) velocity of the car when $t = 35$ .
Select the correct answer.

• A) \(223 \mathrm { ft } / \mathrm { sec }\)
• B) \(16 \mathrm { ft } / \mathrm { sec }\)
• C) \(560 \mathrm { ft } / \mathrm { sec }\)
• D) \(4130 \mathrm { ft } / \mathrm { sec }\)

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