Problem 37 of 7
A student writes: 3 meters + 4 seconds. Is this unit operation valid? Explain the unit problem.
Hints
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identify incompatible quantities.
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Expression must combine incompatible dimensions by addition or subtraction.
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Correct
Your answer is equivalent to the expected form.
Solution
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1. Quantities can be added only when their units measure the same kind of thing.
2. Here, the units are incompatible, so the operation is not valid.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
'No' without a reason.