The Velocity of a Projectile fiRed Straight into the Air

question 98

Multiple Choice

The velocity of a projectile fired straight into the air is given every half second. Use right endpoints to estimate the distance the projectile travelled in four seconds. $$\begin{array} { c | c } \begin{array} { c } \text { Time } \\( \mathrm { sec } ) \end{array} & \begin{array} { c } \text { Velocity } \\( \mathrm { m } / \mathrm { sec } ) \end{array} \\\hline 0 & 140 \\0.5 & 135.1 \\1.0 & 130.2 \\1.5 & 125.3 \\2.0 & 120.4 \\2.5 & 115.5 \\3.0 & 110.6 \\3.5 & 105.7 \\4.0 & 100.8\end{array}$$

• A) 471.8 m
• B) 982.8 m
• C) 491.4 m
• D) 943.6 m

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