![]() It is the effective force created by the interaction of your body and the water. Hence, a swimmer pushes water backward and moves forward due to Newton’s Third law of motion.Īdvertisement Why do swimmers push against water? So, when swimmers push water backwards with some force, water also exerts the same amount of force on the swimmer but in the opposite direction which is forward and hence with the help of this force the swimmer moves forward. It asserts that “If body A exerts a force on body B, then B exerts a force of equal size and opposite direction on A.” It can be written: F AB = – F BA. These forces act on different objects and never on the same object. These two forces are always equal in magnitude but opposite in direction. The third law of motion states that when one object exerts a force on another object, the second object instantaneously exerts a force back on the first object. What is Newton’s third law of motion class 9? ![]() In 1811 it was discovered by an Italian Scientist Anedeos Avagadro. This movement is equal and opposite to the force the water exerts against the swimmer to stop them from moving. Thus, swimmers must stroke downward in the water to stay afloat and propel forward. Newton’s Third Law of Motion states that for every action, there is an equal and opposite reaction. Is swimming an example of Newton’s third law?
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