In fact, the problem already says that the force exerted by magnet A on magnet B is exactly 100 N. The information about the magnetic field intensity of the two magnets is redundant, because we are interested only in the magnitude of the force.
if an object is traveling in such a way that it covers the same distance for each interval of time it is traveling, then it is said to be traveling with uniform speed.
<h3><u><em>Chicken wing chicken wing hot dog and bologna chicken and macaroni chillin with my homies</em></u></h3>