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To calculate the kinetic energy (KE) of the suitcase just before it hits the floor, you can use the formula KE = 1/2 * m * v^2, where m is the mass and v is the velocity (speed) of the suitcase.
Plugging in the given values:
m = 14 kg
v = 2.7 m/s
KE = 1/2 * 14 kg * (2.7 m/s)^2
= 1/2 * 14 kg * 7.29 m^2/s^2
= 51.03 J
Therefore, the suitcase has a kinetic energy of 51.03 Joules just before it hits the floor.