Calculate the vertical velocity of a cannonball

Question

Calculate the vertical velocity of a cannonball which is shot at 50.0 degrees up from the horizontal ground to the right at at speed of 400ms-1

Answer 1

Set up a triangle as described in the problem and then, using trigonometry, solve for v_y (the component of the velocity in the y-direction.

sin(θ) = opposite/hypotenuse

sin(50°) = v_y/400

400sin(50°) = v_y then just plug it into your calculator to get the answer. Make sur to use the proper number of significant figures in your answer.