When a man running on a levelground increases his speed by 4ms^(-2), if his kinetic energy increases by 125% his initial velocity is

When a man running on a levelground increases his speed by 4ms^(-2), i

1.	When a man running on a levelground increases his speed by 4ms^(-2), if his kinetic energy increases by 125% his initial velocity is
Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a> ms^(-<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>)`<br/>`8 ms^(-1)`<br/>`2ms^(-1)`<br/>`6 ms^(-1)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html>