Q55. The kinetic energy of a body moving with the speed of 10 ms-1 is 30 J. If its speed becomes 30 ms-1 then its K.E becomes:Physics — Work, Power and Energy — Question 55 of 238A. 10JB. 90JC. 270 JD. 180 JPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →