Answer:
a force
Explanation:
Because if we apply force then only an object can slow down, speed up or change direction
A its Stratosphere, Sorry I didn't see your answer, its bilogy I think not physics.. :)
Answer:
Explanation:
According to Newton's third law, every action has an equal and opposite reaction
so it tells us that the force exerted by the earth on the spacecraft is equal to the force exerted by the spacecraft on the earth. But we do not see the earth moving towards the spacecraft because the inertia of the spacecraft is very less than the inertia of the earth.