A team of nine dogs can pull a sledge with a combined force of 800 N at a speed of 1.5 m s–1 for 360 minutes.
What is the average work done by each dog during this time?
1 )
$4.8 \times {10^4}J$
2 )
$4.3 \times {10^5}J$
$2.9 \times {10^6}J$
4 )
$2.6 \times {10^7}J$
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