Answer:
Landslide will produce the highest amount of kinetic energy if it moves with high speed and with a large mass.
Step-by-step explanation:
Kinetic energy is type of energy which depends on the speed and mass of the body. Kinetic energy has direct relation with mass and speed of the body. If speed and mass of an object is higher, maximum kinetic energy will be produced in the object while the object has lower kinetic energy if it has lower speed and less mass. So this phenomenon is also apply on the kinetic energy of landslide. If mass and speed of the landslide is higher, its kinetic energy is also higher.