So, T will be greater than R, that is, we say thrust effect, thrust resistance effect. Thrust resistance relationship is not equal to we had said earlier that, if I provide a thrust equal to resistance, the ship will move forward. Now, what we find because of the action of the propeller since the velocity of water near the stern will be increased. The resistance of the ship with the propeller working would be different from propeller if the propeller was not there. Therefore, the force require to push the ship at the same speed will be higher than the resistance of the ship. So, thrust required will be higher than the resistance