Question

​How​ ​fast should a boy of mass 40kg run so that his kinetic energy is 500J.

Answer 1

Answer:

Software engineering is] the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software. IEEE Standard Glossary of Software Engineering Terminology,” IEEE std 610.12-1990, 1990.

Answer 2

Answer:

5m/s

Explanation:

kinetic energy=1/2* m*v^2

according to the question...

500=1/2 *40*v^2

1000=40 * v^2

v^2=1000/40

     =25

   v=√25

     =5m/s

hope this helps....