Asked by minas

A particle moving in the xy plane under goes displacement s=(2i+3j)m while the constant force is given by F=(5i+2j)N.calculate the work done by the force F.
Answered by drwls
Take the dot product of the displacement and force vectors.

Looks like 16 joules.

Review vector dot (scalar) products
Answered by drwls
http://www.netcomuk.co.uk/~jenolive/vect6.html