In motion in the +x direction, you exert a force of magnitude 25 N on an object for 3 seconds, and observe that the magnitude of the object's momentum decreases by 75 kg⋅m/s. If instead you had exerted a force of magnitude 12.5 N on the object for 3 seconds, what would the magnitude of the object's momentum change have been? (Assume the direction of the second force is the same as the direction of the first force.)