Question

A body is subjected to a constant force f in newton given by f= -i+2j+3k. Where i,j and k arw unit vectors along x,y and z axes respectively. The work done by this force in moving the body through a distance of

Answer 1

Answer:

0

Step-by-step explanation:

$work = force \: \times velocity$

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Where force is vector and velocity is also an vector so we can do cross product

$| force| \times | velocity| \sin( \alpha )$

The velocity is along the direction of force so

$\alpha = 0$

$|force| \times |veocity| \sin(0)$

$|force| \times |velocity| \times 0 = 0$