A particle is displaced from a position `2hati-hatj+hatk (m)` to another position `3hati+2hatj-2hatk (m)` under the action of a force `2hati+hatj-hatk(N)`. The work done by the force is

A particle is desplaced from a position (2hat I + 4hat-3hatk) metre to another position (12hati+14hatj+7hatk) metre under the action of force (hati+2hatj-hatk) metre under rthe action of force (hati+2hatj-hatk) N. Work done by the force is

A particle is desplaced from a position (2hat I + 4hat-3hatk) metre to another position (12hati+14hatj+7hatk) metre under the action of force (hati+2hatj-hatk) metre under rthe action of force (hati+2hatj-hatk) N. Work done by the force is

A particle moves from position r_1=(3hati+2hatj-6hatk) m to position r_2=(14hati+13hatj+9hatk) m under the action of a force (4hati+hatj-3hatk) N , then the work done is

A particle moves from position r_1=(3hati+2hatj-6hatk) m to position r_2=(14hati+13hatj+9hatk) m under the action of a force (4hati+hatj-3hatk) N , then the work done is

A body is displaced from position (hati+hatj+hatk) m to position (4hati+5hatj+6hatk) m under the action of force (5hati+4hatj-3hatk) N. The angle between the force and displcement vector is