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A particle moves from position 3hat(i)+2...

A particle moves from position `3hat(i)+2hat(j)-6hat(k)` to `14hat(i)+13hat(j)+9hat(k)` due to a uniform force of `4hat(i)+hat(j)+3hat(k)N`. If the displacement is in meters, then find the work done by the force.

Text Solution

Verified by Experts

`S=vec(r )_(2)-vec(r )_(1), W=vec(F).vec(S)=(4hat(i)+hat(j)+3hat(k)).(11hat(i)+11hat(j)+15hat(k))`
`=(4xx11+1xx11+3xx15)=100J`
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