A ball thrown vertically upward reaches a certain height and comes down again. What can you say about its kinetic energy at the maximum height?

The maximum height is the point where the ball runs out of gas,

stops rising, starts falling, and it's velocity changes from upward
to downward. At that instant, it has no speed, so its kinetic energy
is zero.
its C

A ball thrown vertically upward reaches a certain height and comes down again. What can you say about its kinetic energy at the maximum height?

To determine what happens to the kinetic energy of a ball thrown vertically upward at its maximum height, we need to understand the concept of kinetic energy and the forces acting on the ball.

Kinetic energy is the energy possessed by an object due to its motion. It depends on the mass (m) and velocity (v) of the object and is given by the formula: KE = 0.5 * m * v^2.

When the ball reaches its maximum height, it momentarily comes to a stop before falling back down due to the force of gravity. At this point, the ball's velocity becomes zero, as it is not moving. Therefore, since the velocity (v) in the kinetic energy formula is zero, the kinetic energy (KE) at the maximum height is also zero.

This means that at the maximum height, all of the initial kinetic energy of the ball has been converted into potential energy as it rises against gravity. As the ball falls back down, the potential energy is converted back into kinetic energy, and the process repeats.

In summary, at the maximum height, the ball's kinetic energy is zero, as it momentarily comes to a stop before changing direction and falling back down.

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