Answer:
Explanation:
If you ignore air resistant, then nothing affects the package horizontal motion. In Newton's first law it would keep the package at a constant speed, the speed of the airplane.
So to the eyes of the pilot who is also moving at the same horizontal speed, the lateral position of the package does not change. He can only perceive that the package is getting further away from him as it's dropping vertically.
To a person on the ground then the package is travelling in a parabolic path, where its horizontal speed is constant but vertical speed is increasing toward the ground at the rate of g.
Answer:
Kinetic energy of mass A = 20 J
Kinetic energy of mass B = 40 J
Explanation:
Lets take final speed of mass A = v
The final speed of mass B = v'
mass of A= m
mass of B = m'
m = 2 m'
There is no any external force so the linear momentum will be conserve.
Pi = pf
0 = m v + m ' v'
0 = 2 m ' v +m ' v'
v ' = - 2 v
Now from energy conservation
1/2 k x²=1/2 m v² + 1/2 m' v'²
60 = 1/2 m v² + 1/2 m' v'²
m v² + m' v'² = 120
2 m ' (-v'/2)² + m' v'² = 120
m ' v'²/2 + m' v'² = 120
m' v '² = 80
m =2 m' and v ' = - 2 v
So
m/2 ( 4 v²) = 80
m v ²=40
So the kinetic energy of mass A= 1/2 m v² = 20 J
Kinetic energy of mass B = 1/2 m' v'² = 40 J
Answer:
3 j
Explanation:
12.0 kilo / 4.00 meters = 3 j
Processes in which matter changes between liquid and gaseous states are vaporization, evaporation, and condensation.
Answer:
The magnetic stripes might reverse direction. The deep-ocean trench might become deeper.
Explanation:
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