Question

A particle moves from (1, 0, 3) to the point
(-3, 4, 5), when a force F = (i+5k) acts on it.
Amount of work done in joule is
016​

Answer 1

Explanation:

$\\ \huge \: hey.....$

W = F. S

S = S2-S1

= (-4,+4,+2)

= -4i +4j +2k

W = F. S

= (i+5k) (-4i +4j +2k)

= -4 +10

= 6 J

So it will do 6 joules of Work