The Kinetic energy of the rock is 196 J.
To calculate the Kinetic energy of the rock, we apply the formula below.
Formula:
- K.E = mgh............. Equation 1
Where:
- K.E = Kinetic energy of the rock
- m = mass of the rock
- h = Height of fall
- g = acceleration due to gravity.
From the question,
Given:
- m = 1 kg
- h = 20 m
- g = 9.8 m/s²
Substitute these values into equation 2
- K.E = 1×20×9.8
- K.E = 196 J
Hence, The Kinetic energy of the rock is 196 J.
Learn more about Kinetic energy here: https://brainly.com/question/8101588
