Which of the following quantities has the same unit as the watt?
Question 1 Report
Which of the following quantities has the same unit as the watt?
Answer Details
The watt is a unit of power, which represents the rate at which energy is transferred or work is done. It is equal to one joule per second.
Out of the given options, only "force x velocity" has the same unit as the watt, which is joules per second. This is because force times velocity gives us the unit of momentum, which is kilogram meters per second (kg m/s), and dividing this by time (in seconds) gives us the unit of power, which is joules per second (J/s) or watts (W).
In contrast, "force x time" gives us the unit of impulse (newton seconds), "force x distance" gives us the unit of work or energy (joules), and "force x acceleration" gives us the unit of force times acceleration, which is not a unit of power.
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