Question

A 46.1-g golf ball is driven from the tee with an initial speed of 42.9 m/s and rises to a height of 25.0 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point.

Answer 1

The kinetic energy of the golf ball at its highest point is 40.38 J.

Step-by-step explanation:

To calculate the kinetic energy of the golf ball at its highest point, we can use the principle of conservation of mechanical energy. At the highest point, the golf ball will have zero gravitational potential energy, so the total initial mechanical energy will be equal to the kinetic energy. We can use the formula for kinetic energy to calculate it:

Kinetic Energy = 1/2 * mass * velocity^2

Plugging in the values, we get:

Kinetic Energy = 1/2 * 0.0461 kg * (42.9 m/s)^2

Kinetic Energy = 40.38 J