Explanation: To answer this question, we will use Pythagorean theorem. This is because the givens along with the requirement form a right-angled triangle. the x-component is one of the sides = 21 m the required y-component is the other side the magnitude is the hypotenuse = 35 m Applying Pythagorean theorem, we will be able to get the value of the y-component as follows: (magnitude)^2 = (x)^2 + (y)^2 (35)^2 = (21)^2 + (y)^2 (y)^2 = 784 y = 28 m