Finde the work done in moving an object through a displacement `hati+2hatj+3hatk` when the applied force is `4hati-3hatj+2hatk`

find the work in moving an object through a displacement 2 hati + 3 hatj + 5 hatk when the applied force is 5 hati - 4 hatj + 2 hatk

Calculate the work done if a particle displaces through ( 2 hati - hatj + 5 hatk) meter under a force ( 4 hati + 2 hatj - hatk) newton ( work = vecF . vecS )

A force (3hati+2hatj) N displaces an object through a distance (2hati-3hatj) m. The work done is :

A force (3hati+2hatj) N displaces an object through a distance (2hati-3hatj) m. The work done is :

The work done in moving an object from origin to a point whose position vector is vecr = 3hati + 2hatj - 5hatk by a force vecF = 2hati - hatj - hatk is

Calculate the work done if a particle displaces through (3hati-hatj+6hatk) meter under a force (hati+hatj-hatk) newton. (work =vecF.vecs )

Find the shortest distance between the following lines : (i) vecr=4hati-hatj+lambda(hati+2hatj-3hatk) and vecr=hati-hatj+2hatk+mu(2hati+4hatj-5hatk) (ii) vecr=-hati+hatj-hatk+lambda(hati+hatj-hatk) and vecr=hati-hatj+2hatk+mu(-hati+2hatj+hatk) (iii) (x-1)/(-1) = (y+2)/(1) = (z-3)/(-2) and (x-1)/(1) = (y+1)/(2) = (z+1)/(-2) (iv) (x-1)/(2) = (y-2)/(3) = (z-3)/(4) and (x-2)/(3) = (y-3)/(4) = (z-5)/(5) (v) vecr = veci+2hatj+3hatk+lambda(hati-hatj+hatk) and vecr = 2hati-hatj-hatk+mu(-hati+hatj-hatk)

A particle acted upon by constant forces 4hati +hatj- 4 hatk and 3hati + hatj - hatk is displacment from the point hati+ 2hatj+ hatk to point 5hati + 4hatj +hatk .Total work done by the forces in SI unit is :

Find the projection of the vector veca=3hati+2hatj-4hatk on the vector vecb=hati+2hatj+hatk .

Find the projection oif veca=2hati+3hatj+2hatk on the vector vecb=hati+2hatj+hatk .