Tl494+IR2110

Hello every 1 in the Endless phere world. I recently built this motor speed controller based on TI's TL494 and IR2110 it works beautifully but i have not tested it under any load. I have the ir2110 configured as a dual low side driver which i took from Tahmids blog spot. Im not an engineer of course but i do know how motors works in series or parallel connections. My question is this, with this configuration if i where to place both motors on the same shaft to spin it will the output add up like a parallel connection, or will the output power alternate between the 2 motors spinning the shaft? For some reason i cant load my schematic.