Respuesta :
Answer:
When the ball goes down its mechanical energy is conserved, ust before touching the ground all the energy is kinetic
When the ball touches the floor, energy has been converted into potential and heat, by the deformation of the ball.
Explanation:
When the ball goes down its mechanical energy is conserved, this is the power energy due to the height it is converted into kinetic energy to medicad that falls, just before touching the ground all the energy is kinetic.
When the ball touches the floor, the kinetic energy is not conserved, but if we define a system formed by the ball and the floor, the amount of movement is conserved, this being an inelastic shock, because the bla and the floor are stuck, so which energy has been converted into potential and energized and heat by the deformation of the ball.
Consequently all the mechanical energy that the ball brings before reaching the ground was converted into potential energy and heat during the crash.
The ball of dough does not rebound after it hits the ground because its kinetic energy store decreases, ie; most of its kinetic energy is transferred to the surroundings as thermal energy and sound energy.
- When the dough is held at a certain height from the ground; before the dough is dropped the energy of the dough is stored as gravitational potential energy.
- When the dough is dropped, it starts to fall freely and the force of gravity that acts on the object causes the gravitational potential energy to be transferred to its kinetic energy. This makes the dough fall faster as it falls down.
- Just before the dough hits the ground, its gravitational potential energy is fully transferred to its kinetic energy store.
- As the dough hits the floor, its kinetic energy store decreases as most of it gets transferred to the surrounding as thermal energy and sound energy. Some of the kinetic energy is also lost through deformation when the dough changes shape.
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