Ans:5 J
steps:
power=( F. S )/t
=1/2 × [ (i+2j+2k)*(2i+3j+k) ]
=1/2 × ( 2+6+2 )
=10/2
= 5 J
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Ans:5 J
steps:
power=( F. S )/t
=1/2 × [ (i+2j+2k)*(2i+3j+k) ]
=1/2 × ( 2+6+2 )
=10/2
= 5 J