Which of the following units is equivalent to the watt?
Which of the following units is equivalent to the watt?
kgms-2
kgm2s-3
kgm2s-2
kgm2s-1
Correct answer is B
Power=Work donetime
= Force×distancetime
= mass×acceleration×distancetime
= kg×m×ms2×s
= kgm2s−3
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