A body of mass 10 kg is displaced from point a(2,1,3)to point b(3,3,4) under the effect of force of magnitude 20N in the direction of 6i+8j . calculate W.D by the force?
1 Answer
Nov 24, 2017
The work is
Explanation:
The work done is the dot product of the Force and the Distance.
The vector
The magnitude of the force is
The unit vector in the direction of the force is
Therefore,
the force is
The work done is