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