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Scalar multiplication

Problem

Vector v, with, vector, on top has a magnitude of 3 units and it creates an angle of 160, degree with the positive x-axis.
Find the magnitude and direction of 5, v, with, vector, on top.
Give the direction as an angle measure between 0, degree and 360, degree.
open vertical bar, open vertical bar, 5, v, with, vector, on top, close vertical bar, close vertical bar, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
units
5, v, with, vector, on top creates an angle of
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
degree with the positive x-axis.
Stuck?
Stuck?