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A force vecF=10hati+2hatj+3hatk N displa...

A force `vecF=10hati+2hatj+3hatk` N displaces a particle from `vecr_1=2hati+hatj+hatk` m to `vecr_2=4hati+2hatj+3hatk` m Find the work done by the force.

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Displacement vector `vecd=vecr_2-vecr_1=2hati+2hatkm`
Force vector `vecF=10hati+2hatj+3hatkN`
`W=vecF.vecf=(10hati+2hatj+3hatk).(2hati+hatj+2hatk)`
`=20+2+6=28J`
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CP SINGH-WORK, ENERGY AND POWER-EXERCISES
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  3. A body, constrained to move in the Y-direction is subjected to a force...

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