Nan’s suitcase is on a bench. The suitcase has a mass of 14 kilograms. Nan accidentally knocks the suitcase off the bench, and the suitcase falls at a speed of 2.7 meters per second. How much kinetic energy does the suitcase have just before it hits the floor?
KE=12mv2
(1 point)
Responses
18.9 J
18.9 J
102.06 J
102.06 J
51.03 J
51.03 J
204.12 J
To calculate the kinetic energy (KE) of the suitcase just before it hits the floor, we can use the formula KE = 1/2 * mass * velocity^2.
Substituting the given values:
mass = 14 kilograms
velocity = 2.7 meters per second
KE = 1/2 * 14 kg * (2.7 m/s)^2
KE = 1/2 * 14 kg * 7.29 m^2/s^2
KE = 51.03 J
Therefore, the kinetic energy of the suitcase just before it hits the floor is 51.03 Joules.