Which falling object has the least kinetic energy when it collides on the ground?
a. 120 Kg of sand falling 12 m/s
b. 120 Kg of water falling at 12 m/s
c. 12 Kg of water falling at 10 m/s
d. 12 Kg of sand falling at 8 m/s
a. 120 Kg of sand falling 12 m/s
b. 120 Kg of water falling at 12 m/s
c. 12 Kg of water falling at 10 m/s
d. 12 Kg of sand falling at 8 m/s