which would have less kinetic energy?

a. 10 grams of water falling at 1 m/s
b. 10 grams of dirt falling at 2 m/s

The kinetic energy of an object is calculated using the formula KE = (1/2)mv^2, where m is the mass of the object and v is its velocity.

a. For 10 grams of water falling at 1 m/s:
KE = (1/2)(0.01 kg)(1 m/s)^2
KE = 0.005 Joules

b. For 10 grams of dirt falling at 2 m/s:
KE = (1/2)(0.01 kg)(2 m/s)^2
KE = 0.02 Joules

Therefore, the water falling at 1 m/s would have less kinetic energy compared to the dirt falling at 2 m/s.