Which of the following is equivalent to 1 Watt1 \text{ Watt}1 Watt?
1 J⋅s1 \text{ J} \cdot \text{s}1 J⋅s
1 J/s1 \text{ J} / \text{s}1 J/s
1 N⋅m21 \text{ N} \cdot \text{m}^21 N⋅m2
1 kg⋅m/s1 \text{ kg} \cdot \text{m} / \text{s}1 kg⋅m/s