Answer:
Yes that's right. Not really sure what your looking for as far as a reason goes. You performed the correct operations and got the right answer.
If a theory is studied in let's say the 17th century, the theory has had many years to be studied and explained by many different people many different ways.
p=mv so wouldn't u multiply them?
B
Assume north and east as two sides of a right angled triangle. magnitude of the distance is then given by the length of the hypotenuse which is
where a = 1.2 km north
and b = 1.6 km east
magnitude = 2 km
Direction is given by the angle between them, that is atan(a/b) = 36.86 deg north of east = 53.1 deg east of north.