Question:
Which of the following must be known in order to determine the power output of an automobile?
Which of the following must be known in order to determine the power output of an automobile?
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Power is the rate of doing work, so it depends on work done and time elapsed.
Updated On: Mar 25, 2026
- Final velocity and height
- Mass and amount of work performed
- Force exerted and distance of motion
- Work performed and elapsed time of work
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The Correct Option is D
Solution and Explanation
Step 1: Power Formula.
Power is defined as the rate at which work is done: \[ P = \frac{W}{t} \] where \( W \) is the work done and \( t \) is the time taken.
Step 2: Determine the correct parameters.
To determine the power output of an automobile, we need to know how much work is performed and the time it takes to perform that work. Thus, the correct answer is (4).
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