Question

In the 1992 summer olympics, the german four-man kayak team cov- ered 1 km in just under 3 minutes. suppose that between the starting point and the 150 m mark the kayak steadily increases its speed from 0.0 m/s to 6.0 m/s, so that its average speed is 3.0 m/s. a. how long does it take to cover the 150 m? b. what is the magnitude of the average acceleration during that part of the course?

a. 30 seconds, 0.4 m/s^2
b. 25 seconds, 0.6 m/s^2
c. 35 seconds, 0.5 m/s^2
d. 40 seconds, 0.3 m/s^2

Answer 1

To calculate the time and average acceleration for the kayak team from the 1992 Summer Olympics, one would use distance and average speed to find time, and the change in velocity over time for acceleration. However, the provided answers do not match calculated results, implying an issue with the available options.

Step-by-step explanation:

The question involves the calculation of time and average acceleration for a German four-man kayak team in the 1992 Summer Olympics as it increased its speed from 0.0 m/s to 6.0 m/s over a distance of 150 m.

Part A: Time Calculation

To find the time taken to cover 150 m at an average speed of 3.0 m/s, we use the formula:

time = distance / average speed

time = 150 m / 3.0 m/s = 50 seconds

Part B: Average Acceleration Calculation

To find the average acceleration, we use the formula:

average acceleration = (final velocity - initial velocity) / time taken

average acceleration = (6.0 m/s - 0.0 m/s) / 50 s = 0.12 m/s2

Conclusion

However, none of the answer choices match our calculated results. Therefore, we must assume there is either an error in the provided choices or additional information is needed to match the conditions of the question.