1. The following questions relate to the followingscenario.
A student is listing possible factors that determine thechange in the kinetic energy of objects. She has collected data inthe following experimental setup:
Two blocks with different masses are free to slide on avery, very smooth table between two parallel lines. An air blowerpushes each block horizontally, exerting the same constant force.Both blocks start from rest and cover the same distance on theirtrack under the action of the air blower. The experimental datacollected by the groups support the claim that the final kineticenergies of the two blocks are equal.
Of the following explanations, which is the most correctand complete causal account of the kinetic energies of the twoblocks being equal?
Group of answer choices
-The two blocks have equal final kinetic energiesbecause when there is negligible friction, mechanical energy staysconstant.
-The two blocks have equal final kinetic energiesbecause the blower transfers to each of them equal amounts ofenergy per meter.
-The two blocks have equal final kinetic energiesbecause the blower transfers to each of them equal amounts ofenergy per second.
-The two blocks have equal final kinetic energiesbecause the higher final speed of the lighter block compensates forits smaller mass.
