Which of these quantities are important in your solution? 3. The rest energy mc

Question

Which of these quantities are important in your solution? 3. The rest energy mc 2 of the rock The final kinetic energy of the rock The force exerted by your hand on the rock The final potential energy of the rock+asteroid system The initial potential energy of the rock+asteroid system The time it takes for the rock to get far away The rest energy Masteroidc 2 of the asteroid The initial kinetic energy of the rock can be more than one! How fast do you have to throw the rock so that it never comes back to the asteroid and ends up traveling at a speed of 12 m/s when it is very far away? launch speed (relative to you) (m/s) Please it is due tonight!

Explanation / Answer

A) The Energy Principle

B)In the final state the rock is very far away moving at 12 m/s
In the initial state the rock has just left your hand

C)The finalkinetic energyof the rock
The initialpotential energyof the rock+asteroid system
Theinitial kinetic energyof the rock

D)The change in the kinetic energy of the asteroid is negligible
The final kinetic energy of the rock is less than its initial kinetic energy

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