Calculate the speed of an 8.0x10^4 kg airliner with a kinetic energy of 1.1x10^9 j ... ?

Kinetic energy is the energy possessed by an object on motion. it is expressed as follows:

KE = 0.5mv^2

where m is the mass and v is the velocity of the object. We calculate as follows:

KE = 0.5mv^2

1.1x10^9 J = 0.5 (8.0x10^4 kg) v^2

v = 165.83 m/s