Answer:
Kinetic energy increases
Explanation:
The kinetic energy of a body is directly proportional to the velocity of the body. A body at rest does not possess any kinetic energy.
The kinetic energy of a body increases with an increase in velocity.
The kinetic energy of a body decreases with a decrease in velocity.
The relation between kinetic energy and velocity of a body is given by the formula
[tex]K.E = 1/2\frac{MV^{2} }{R}[/tex]
When the skater goes down a ramp, his velocity gets increases due to the gravitational force. As a result, his kinetic energy increases at a rate that is proportional to the square of the velocity of the skater.
Hence, as a skater goes down a ramp, his kinetic energy increases.