Check Your Understanding  The Force of Gravity
Choose the single best answer in each question. When you use the equation F = ma, if the mass is in kilograms, the acceleration is in meters per second squared (m/s^{2}), and the units for force (F) are newtons (N). So 1 N is the force required to make 1 kg accelerate 1 m/s^{2}.
Remember that the gravitational acceleration (g) on Earth is 9.8 m/s^{2}.
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