Question

The kinetic energy of a body of mass 2 kilogramme is 9 Joule its speed is​

Answer 1

Answer:

kinetic energy=1/2mv²

here m=2 kg, k.E=9joule

so , we have to calculate the value of v

1/2×2v²=9

v²=9

v=3 m/s

so the speed is 3 m/s