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The Mythbusters determine Jamie's reaction time is 490 milliseconds. How many feet can the bullet travel in that time?

A. Approximately 44 feet.
B. Approximately 70 feet.
C. Approximately 34 feet.
D. Approximately 56 feet.

1 Answer

3 votes

Final answer:

By calculating the distance using the given velocity of the bullet and reaction time, we find that a bullet can travel approximately 804 feet in 490 milliseconds. None of the given answers match this calculated distance, indicating a mismatch in the provided answer choices.

Step-by-step explanation:

To calculate how many feet a bullet can travel in 490 milliseconds, we first need to convert Jamie's reaction time into seconds by dividing by 1,000 (since there are 1,000 milliseconds in a second). Therefore, 490 milliseconds is 0.490 seconds. Next, we need to use the given bullet velocity, which is 5.0×10² m/s (or 500 m/s), and multiply it by the reaction time to find the distance traveled. The calculation is:

Distance = Velocity × Time

Distance = 500 m/s × 0.490 s = 245 meters

Now we convert meters to feet by multiplying by the conversion factor of 3.28084 (since there are approximately 3.28084 feet in a meter). So, 245 meters is:

245 m × 3.28084 ft/m = approximately 804 feet

Given the provided answer options do not match the calculated distance, and assuming that the values provided in the question (bullet speed, reaction time) are accurate, there seems to be either a mismatch in the options or additional information is required to select the correct answer among the given choices.

User Andy  Gee
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