Energy conversion for a body thrown vertical upwards
Answers
Answer:
Explanation:
The total energy of any body thrown vertically upward is the sum of the kinetic energy and the potential energy of the body at the height that the body has reached after being thrown vertically upwards. The' kinetic energy' of the body is due to its velocity at any certain point.
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the energy of the ball changes as it goes up and then comes back down. There are two main kinds of energy that are important in this situation: kinetic and potential. Kinetic energy (K) is the energy of motion, with the equation (as you can see below) being
This is essentially saying that all moving objects have kinetic energy, and the amount of kinetic energy is proportional to both how fast the object is moving (velocity, v) and how heavy it is (mass, m).
In contrast to kinetic energy, an object can have gravitational potential energy whether it's moving or not. The amount of gravitational potential energy (UG) of the ball depends on how high it is above the ground (h) and its weight (W = mg, where g = 9.8 N/kg), with the equation, as you can see below, being:
If no forces (other than gravity) act on the ball during its trip up and back down, then the ball's total mechanical energy (kinetic + potential) will not change. However, the energy of the ball can change forms. Initially, the ball has a lot of kinetic energy, because you've given it a pretty large upward velocity. In this case, the total energy is conserved because it doesn't change.
However, as the ball moves upward, it slows down as its initial kinetic energy is transformed into potential energy. Eventually, all of the initial kinetic energy will become potential energy, and the ball will stop momentarily. The ball has finally reached its highest point. After this, it'll turn around and fall back the ground as all the potential energy it had at the highest point is transformed back into kinetic energy as it falls to the ground.