A machine rated as 150 W, changes the velocity of a 10 kg mass from 4 ms^(-1)" and "10 ms^(-1) in 4s. The efficiency of the machine nearly is

A machine rated as 150 W, changes the velocity of a 10 kg mass from 4

1.	A machine rated as 150 W, changes the velocity of a 10 kg mass from 4 ms^(-1)" and "10 ms^(-1) in 4s. The efficiency of the machine nearly is
Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/70-333629" style="font-weight:bold;" target="_blank" title="Click to know more about 70">70</a>%`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/30-304807" style="font-weight:bold;" target="_blank" title="Click to know more about 30">30</a>%`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/50-322056" style="font-weight:bold;" target="_blank" title="Click to know more about 50">50</a>%`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/40-314386" style="font-weight:bold;" target="_blank" title="Click to know more about 40">40</a>%`</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</body></html>