Answer:
They will both bounce back at the same speed they had before the collision
Explanation:
Assuming an elastic collision, kinetic energy will be conserved. Therefore, the billiard balls will have the same speed after the collision as before the collision.
Third model shows how a comet's tail changes during its orbit...
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Answer: 33.3 m/s^2
Explanation:
Here we need to use the second Newton's law.
F = m*a
Force equals mass times the acceleration.
Here we know that the force is F = 4000 N, and the mass is 120kg, then the acceleration must be:
4000 N = 120kg* a
a = (4000/120) m/s^2 = 33.3 m/s^2
Answer:
416,500 J – 67,200 J = 349,300 J
The potential energy at the top of the second hill is 349,300 joules.
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