Question #3d83f

1 Answer
Matt
Nov 12, 2016

10.25 W

Explanation:

In vector notation, work done is defined as:

#W=vecF.vecS#

So by definition power is:

#P=(vecF.vecS)/t#

we are given #vecF# and #vecS#. The dot product is:

#=(4*3)+(7*2)+(-3*-5)=12+14+15=41 J#

So #power = 41/4=10.25 W#

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