Question

a particle is displaced through 3i-2j+2k m under the influence of a force -i+j-5k n . calculate the work done​

Answer 1

Answer:

Work done is - 15 J

Explanation:

Given,

A particle is displaced through (3i-2j+2k) m

A force = F = (-i+j-5k) N

To find: Work done

SOlution:

Work done is defined as the dot product of force and displacement.

i.e W = F.d

or, W = (3i - 2j + 2k) . (-i + j -5k)

or, W = -3 - 2 - 10 J

or, W = - 15 J

Therefore, Work done is - 15 J.

Answer 2

Answer:

work Is done by j

Explanation:

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