Question

Question
In international play hockey puck is struck by a "green team" hockey player at the blue line with 2:35 on the clock. It is stopped by an "orange team" player at the opposite blue line with 2:32 on the clock. On an international hockey rink the blue lines are 17⅔ m apart. Calculate the speed of the hockey puck. (Round your answer to the hundredths place. Only report the number in the units of m/s.)

Answer 1

To find the speed of the hockey puck, we first need to determine the distance it traveled and the time it took to travel that distance.

1. **Distance**: The distance between the blue lines is given as 17⅔ m. We can convert this to an improper fraction:
\[
17 \frac{2}{3} = \frac{53}{3} \text{ m} \approx 17.67 \text{ m}
\]

2. **Time**: The puck was struck at 2:35 and stopped at 2:32, so the time elapsed is:
- From 2:35 to 2:34 is 1 second.
- From 2:34 to 2:32 is an additional 2 seconds.
- Total time = 1 second + 2 seconds = 3 seconds.

3. **Speed**: Now, we can calculate the speed using the formula:
\[
\text{Speed} = \frac{\text{Distance}}{\text{Time}} = \frac{17.67 \text{ m}}{3 \text{ s}} \approx 5.89 \text{ m/s}
\]

Thus, the speed of the hockey puck is approximately \( \boxed{5.89} \) m/s.