A constant force of 15 N in the negative y direction acts on a particle as it moves from the origin to the point (3i+3j-1k)m. How much work is done by the given force during this displacement?
What will be an ideal response?
Ans: Work done , W = F .S
=( - 15 j ) . ( 3 i + 3j - k )
= - 45 J
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