what is the unit vector perpendicular to the vector 4j-3k
The magnitude of vector A is 5 units and that of B is 2 units .
what is the minimum magnitude of sum of vectors A and B. explain the answer in detail .
What is a unit vector?
What is the unit vector parallel to a=3i+4j−2k?.What vector should be added to a so that resultant is the unit vector →i?
State Coulomb's law, explain its vector form and define S.I. unit of electric charge. State two limitations of Coulomb's law.