As we sit in a chair, Action force will be only in one direction and that direction would be downward only.
In short, Your Answer would be Option A
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The ability to reproduce is essential for a species, but not for an individual. There are some people that can't reproduce, but they're still alive!
<span>The acceleration of the bullet is called ACTION.
</span>Formally stated, Newton's third law<span> is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
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Distance = speed X time
In this example, the speed of the airplane = 840km. The time (that the question is asking)is how far can it travel in 1 hour.
So just plug in your numbers.
Distance = 840km X 1 hour = 840km/hour or 840km for short.