The kinetic energy 22,500 joules
The calculation can be done as follows
mass= 0.5 kg
time= 300 m/s
Kinetic energy= 1/2mv²
= 1/2 × 0.5 × 300²
= 0.5 × 0.5 × 90,000
= 22,500
Hence the Kinetic Energy is 22,500 joules
Please see the link below for more information
https://brainly.com/question/10845930?referrer=searchResults
