What is meant by the point of application of force?
(a) What is meant by a contact force? Explain with the help of an example.
(b) What is meant by a no-contact force? Explain with the help of an example.
What is meant by wind energy farm?
Write one of its practical application
the work done by force is defined as a dot product of force vector and displacement vector of the point of application of force.if the point of application of force F=5i-3j+2k is moved from r1=2i+7j+4k to r2=-5i+2j+3k the work done by force is