Question

Select the correct answers.

When you throw a ball upward, its kinetic energy _______ (decreases, increases, or remains the same) and its potential energy _______ (decreases, increases, or remains the same) . When the ball reaches maximum height, its kinetic energy is at a (maximum, or minimum).

Answer 1

decreases, increases, minimum (zero)

Step-by-step explanation:

Kinetic energy of a body is directly proportional to the square of velocity of the body and the potential energy is directly proportional to the height of the body at which it is placed.

The formula for the kinetic energy is

K = 1/2 m v^2

The formula for the potential energy is

U = m g h

As the body goes up its kinetic energy decreases as the velocity of the object decreases.

As the body goes up the potential energy increases as the height increases.

At the top most point, the velocity of teh object is zero, so the kinetic energy at the top is zero.