When a force vector `vecF=(hati+2hatj+hatk)`N acts on a body and produces a displacement of `vecS=(4hati+hatj+7hatk)` m, then the work done is

A force vecF=(5hati+4hatj)N acts on a body and produces a displacement vecS=(6hati-5hatj+3hatk) m. The work done will be

A force vecF = (5 hati + 4 hatj)N acts on a body and produces a displacement vecs = (6 hati - 5 hatj + 3 hatk)m . The work done will be

A force vecF=6hati+2hatj+3hatk acts on a particle and produces a displacement of vecS=2hati-3hatj+xhatk . If the work done is zero, the value of x is

A force vecF=6hati+2hatj-3hatk acts on a particle and produces a displacement of vecs=2hati-3hatj+xhatk . If the work done is zero, the value of x is

A force 2hati+3hatj+4hatk N acts on a body for 4 sec, produces a displacement of (3hati+4hatj+5hatk) m. the power used is

A force 2hati+3hatj+4hatk N acts on a body for 4 sec, produces a displacement of (3hati+4hatj+5hatk) m. the power used is

A force vecF=5hati+6hatj+4hatk acting on a body, produces a displacement vecS=6hati-5hatk . Work done by the force is