9. A watch loses 1 second every week. How many minutes will the watch be off at the end of 1 year?
Physics-Problem Solving Entries
Key Idea:
To determine the number of minutes the watch will be off at the end of 1 year, we need to calculate the total number of seconds lost in a year and convert it to minutes.
Stock of Data:
- The watch loses 1 second every week.
- There are 52 weeks in a year.
- 1 minute consists of 60 seconds.
Solution:
1. Calculate the total number of seconds lost in a year:
1 second/week * 52 weeks/year = 52 seconds/year
2. Convert the total number of seconds to minutes:
52 seconds/year ÷ 60 seconds/minute = 0.87 minutes/year
Sanity Check:
The result seems reasonable as losing 1 second per week would accumulate to approximately 1 minute over the course of a year.