Can kinetic energy of a system be increased without applying any external force on the system?
Answers
Answered by
37
Answer ⇒ Yes, Kinetic Energy of the system can be increased without applying any External force on the system.
Explanation ⇒
Let us take an example to show that the kinetic energy can be increased without applying any external force.
Keep the two Oppositely charged bodies at the certain distance.
Since when they are in the Rest, there kinetic energy will be zero.
As, K = 1/2 mu²
= 0
When the Charged bodies are released, both will attracts each other and hence there velocities will continuously increase as they will come closer to each other. As a result of this there kinetic energy will also be increased.
Thus, In this Example the Kinetic Energy of the Bodies are increased without any external force.
Hope it helps.
Explanation ⇒
Let us take an example to show that the kinetic energy can be increased without applying any external force.
Keep the two Oppositely charged bodies at the certain distance.
Since when they are in the Rest, there kinetic energy will be zero.
As, K = 1/2 mu²
= 0
When the Charged bodies are released, both will attracts each other and hence there velocities will continuously increase as they will come closer to each other. As a result of this there kinetic energy will also be increased.
Thus, In this Example the Kinetic Energy of the Bodies are increased without any external force.
Hope it helps.
Answered by
5
Yes. Let us consider an isolated system of two particles falling towards each other under their mutual gravitational force of attraction.
1Here, the net force on the system is zero, but the velocities of the particles keep on increasing.
Also, the kinetic energy of the system is increased without applying any external force on it.
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