Question

You are given a vector in the x-y plane that has a magnitude of 70.0 units and a y-component of -55.0 units. the two possibilities for the x-component of the vector are and . (report your answer only to the ones place, no decimals)

Answer 1

43 or -43

Explanation:

(x^2+y^2) = 70^2

now putting the value of y component

x^2 = 4900 - 3025

x = 1875^1/2 = 43 or -43