1.

21. How far should a man of mass 60 kg run so that his kinetic energy is 750 J?

Answer»

mam but in the question they have asked how far and not how fast....

Mass = 60 kgK.E = 750 Jv = ?

K.E = (1/2)mv^2

750 = (1/2) × 60 × v^2v^2 = 150/6v = √25v = 5 m/s____________________Hence the man should run with a velocity of 5m/s.



Discussion

No Comment Found

Related InterviewSolutions