Concept explainers
To Choose:The correct option.
Answer to Problem 9STP
A correct answer is an option (B).
Explanation of Solution
Given:
The given table is shown below
Runner | Distance covered (km) | Time (min) |
Ling-Long | 12.5 | 42 |
LaToya | 7.8 | 38 |
Bill | 10.5 | 32 |
Jose | 8.9 | 30 |
Formula used:
The average speed is
Here,
Momentum can be written as
Here,
Calculation:
Substitute 12.5 km for
Substitute 7.80 km for
Substitute 10.5 km for
Substitute 8.9 km for
From equation (1), it can be observed that speed is directly proportional to the momentum, therefore, lesser speed smaller would be the momentum. From the above calculation, it is evident that LaToya has smallest momentum.
Conclusion:
Hence,LaToya has smallest momentum.
Chapter 2 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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