If there are two forces acting on a rocket, and the forces are equal and opposite, then they add up to zero, and there is no NET force at all on the rocket.
Then the rocket can only move at a constant speed in a straight line. It can't have any acceleration (change of speed or direction.)
Answer:
Newtons Second Law of Motion
Explanation:
Answer:
F = 53153.36[N]
Explanation:
In order to solve this problem, we must first use the principle of conservation of energy which is transformed from potential energy to kinetic, in this way we can determine the velocity at which the person enters the water.
where:
m = mass = 100 [kg]
g = gravity acceleration = 9.81 [m/s²]
h = elevation = 9 [m]
v = velocity [m/s]
Now replacing we can determinate the velocity.
Then we can calculate the momentum which can be calculated as the product of force by time, this momentum is also equal to the product of mass by velocity.
Now replacing:
F = impact force [N]
t = time = 0.025 [s]
m = 100 [kg]
v = velocity = 13.28 [m/s]
The best and most correct answer am<span>ong the choices provided by your question is the first choice or letter A.
</span><span>Quantum mechanics is different from classical mechanics because: quantum mechanics describes changes on the subatomic scale better than classical mechanics does.</span>
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