And the magnitude of its vertical component, we've done this many times before as well, is the magnitude of the vector times the sine of theta, and actually we know what theta is so I don't actually have to write the theta - theta is, we know the angle, theta is the general Greek letter that you would use for the angle - but we know that the angle is 45 degrees so I say v sub i times the cosine of 45 degrees and then the vertical component is going to be the magnitude of our vector, v sub i times sine of 45 degrees.