Ĭalculate the force needed to accelerate a 15 kg gazelle at 10 m/s 2. ExampleĬalculate the force needed to accelerate a 22 kg cheetah at 15 m/s 2. Inertial mass is a measure of how difficult it is to change the velocity of an object. The ratio of force over acceleration is called inertial mass. Looking at the form of Newtons second law shown above, we see that the acceleration is proportional to the net force, F Sigma F F Sigma, F, and is inversely proportional to the mass, m m m m. In other words, the acceleration of an object increases if the resultant force on it increases, and decreases if the mass of the object increases. inversely proportional to the mass of the object.proportional to the resultant force on the object.The equation shows that the acceleration of an object is: acceleration ( α ) is measured in metres per second squared (m/s 2 ).mass ( m ) is measured in kilograms (kg).Newton's second law of motion can be described by this equation:
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