Question

as a soccer ball flies upward after being kicked, the energy transformation occurring (ignoring air resistance) is

ke is converted into peg.
peg is converted into ke.
ke and peg are both increasing.
mechanical energy is increasing.

Explanation:

Step1: Analyze Kinetic Energy (KE)

When the soccer ball flies upward, its speed decreases. Since \(KE=\frac{1}{2}mv^{2}\) (where \(m\) is mass and \(v\) is velocity), as \(v\) decreases, \(KE\) decreases.

Step2: Analyze Gravitational Potential Energy (PEg)

The ball's height \(h\) above the ground increases. Using the formula \(PEg = mgh\) (where \(g\) is the acceleration due to gravity), as \(h\) increases, \(PEg\) increases.

Step3: Analyze Mechanical Energy

Since air - resistance is ignored, mechanical energy \(E = KE+PEg\) is conserved. It does not increase.

Answer:

KE is converted into PEg.