At one instant of time a rocket is traveling in outer space at 2500m/s and is exhausting fuel at a rate of 100 kg/s. If the spee
1 answer:
Thrust is quantified as a reaction force, in accordance with Newton's third law. When a system accelerates or expels mass in one direction, this resulting mass generates a force of equal strength but in the opposite direction on that system. This relationship can be expressed mathematically as:
Where:
v = velocity of the exhaust gases as perceived from the rocket.
= Change in mass over time
The provided data is as follows:
After substitution, we obtain:
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Answer:
1.56 J
Explanation:
According to the data provided,
the spring compression is x = 2.5 cm.
The force exerted by the spring is given by,
F = - k x
where k = 5000 N/m.
We want to find the potential energy stored.
Thus, the energy contained within the spring is
PE = 1.56 J
Consequently, the energy stored in the spring amounts to 1.56 J.