During a new moon, is the moon A) in between Earth and the sun B) in front of the sun, in back of Earth C) in front of Earth, in
2 answers:
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The acceleration of the air plane is
<u>Explanation:</u>
Given:
The mass of the air plane = 1492.3 kg
Force of each four engine = 1447.5 N
So, the total force of four engines can be calculated as = 4(1447.5) = 5790 N
The force that acts on the object is equal to the product of mass (m) and its acceleration. It can express by the below formula,
The above equation can be written as below to find acceleration,
Now. Substitute the given values, we get,
Answer:
Explanation:
According to the law of conservation of linear momentum, the total momentum of both pucks won't be changed regardless of their interaction if no external forces are acting on the system.
Being and
the masses of pucks a and b respectively, the initial momentum of the system is
Since b is initially at rest
After the collision and being and
the respective velocities, the total momentum is
Both momentums are equal, thus
Solving for
The initial kinetic energy can be found as (provided puck b is at rest)
The final kinetic energy is
The change of kinetic energy is