<span>In order to determine the speed of the entire assembly, we employ conservation of momentum. Momentum p = mv where m is the object's mass and v is the velocity.
The putty ball's initial momentum p1 = 0.3kg*6m/s = 1.8 kg*m/s
That momentum is conserved, so the momentum of the new system having mass 0.3 kg + 1.2 kg = 1.5 kg is:
1.8 kg*m/s = 1.5kg*v. Solving for v, we find that the velocity is 1.2 meters/second.</span>
Answer:
This passage is part of the resolution because it shows what happens after the climax. It wraps up the conflict, and then the story is over.
Explanation: cause I am smart thats why
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Answer:
The final kinetic energy is four times of initial kinetic energy when speed of the car doubles.
= 4 
Explanation:
Mass of the car = 770 kg
initial speed
= 23.1 
Final speed
= 46.2 
Initial kinetic energy
= 
⇒
= 0.5 × 770 × 
⇒
= 205440 J
Final kinetic energy
= 
⇒
= 0.5× 770 × 
⇒
= 821760 J
Thus
= 4 
Therefore the final kinetic energy is four times of initial kinetic energy when speed of the car doubles.