1.

A force vec(F)=(5hat(i)-3hat(j)+2hat(k)) N moves a particle from bar(r_(1))=(2hat(i)+7hat(j)+4hat(k))m to bar(r_(2))=(5hat(i)+2hat(j)+8hat(k))m.The work done by the force is,

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18 J
28 J
38 J
48 J

ANSWER :C


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