A constant force acts on a body that undergoes a displacement

PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A constant force acts on a body that undergoes a displacement. The vectors are F⃗=5 i^+3 j^−2 k^  N\vec F = 5\,\hat i + 3\,\hat j - 2\,\hat k\;\text{N} and s⃗=2 i^+1 j^+2 k^  m\vec s = 2\,\hat i + 1\,\hat j + 2\,\hat k\;\text{m}. (i) Calculate the magnitude of the component of the force along the direction of displacement. (ii) Determine the work done by the force during this displacement.

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