Explanation :
Joule is the SI unit of energy. Energy is the capacity of a body to do any work. Its SI unit is also joules.
The formula for work done is given as :
[tex]W=Fd[/tex]
The SI unit of force is Newton and it is equal to kilogram meter per second square or kg m/s².
the SI unit of distance is m
So, joule is equivalent to Newton times meter.
Hence, the correct option is (A) " a newton times a meter ".
A joule is equivalent to Newton times a meter, as this unit of work is related to the energy expended by a force of Newton acting at a distance of one meter.
This unit used to measure mechanical or thermal energy, corresponds according to the international system of units to the following formula:
Therefore, it can be said that one joule corresponds to the energy of acceleration of a mass of 1kg at 1m/s², being equivalent to one newton meter.
The correct alternative is:
A.a newton times a meter
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