To solve this problem we will apply the given concept for torque which explains the relationship between the force applied and the distance to a given point. Mathematically this relationship is given as

Where,
Torque
F = Force
d = Distance
Our values are given as,

Therefore replacing we have that the force is

F = 12.72N
Therefore the least amount of force that you must exert is 12.72N
The best answer would be A
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Answer:
100 m/s²
Explanation:
50 N / 500 g = 50 N / 0.500 kg = 100 m/s²