If gravity is pulling a 0.15 kg ball down 2.0 meters, what is the magnitude of the force doing work on the ball? Answers: 0.15 N, 0.30 N, 1.5 N, 2.9 N

Distance^2= yellow line ^2 (see picture) = 30^2 + 49^2so distance = squareroot of (300^2 +49^2)i dont know if this is how to solve it, but i cnt think of another way

Sorry i don’t know what to do