Question

Olivia is on a swing at the playground.

A girl is swinging on a swing set. At W she is about 45 degrees up and to the left. At X she is near the bottom of the swing just to the left. At Y she is near the bottom of the swing just to the right. At Z she is about 45 degrees up and to the right.
At which point is her kinetic energy increasing and her potential energy decreasing?

W
X
Y
Z

Answer 1

Answer:

At X

Explanation:

the kinetic energy increases due to gravity and the potential energy decreases due to it's hight

Answer 2

Given:

• The girl is swinging on a swing set.
• Four points are defined: W, X, Y, and Z. The girl is at 45 degrees up and to the left at point W, near the bottom of the swing just to the left at point X, near the bottom of the swing just to the right at point Y, and 45 degrees up and to the right at point Z.

To find:

The point at which the girl's kinetic energy is increasing and her potential energy is decreasing.

Solution:

• Kinetic energy is the energy an object possesses due to its motion, while potential energy is the energy stored in an object due to its position or configuration. As the girl swings back and forth, her potential and kinetic energies will vary.
• At point W, the girl is at her highest point on the left side of the swing. At this point, her kinetic energy is zero, and her potential energy is at its maximum. As she swings toward point X, her potential energy will decrease, and her kinetic energy will increase.
• At point X, the girl is at the bottom of the swing on the left side. At this point, her potential energy is at its minimum, and her kinetic energy is at its maximum.
• As the girl swings toward point Y, her kinetic energy will decrease, and her potential energy will increase.
• At point Y, the girl is at the bottom of the swing on the right side. At this point, her potential energy is at its minimum again, and her kinetic energy is zero.
• As the girl swings toward point Z, her potential energy will decrease, and her kinetic energy will increase.
• At point Z, the girl is at her highest point on the right side of the swing. At this point, her potential energy is at its maximum again, and her kinetic energy is zero.

Therefore, the point at which the girl's kinetic energy is increasing and her potential energy is decreasing is at point X, near the bottom of the swing on the left side.

To learn more about kinetic energy from the given link.

https://brainly.in/question/15690572

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