Both the light-weight set of keys and the heavy blob of clay fall at the same rate in the absence of air resistance. According to Galileo's experiment and the principle of equivalence, objects of different masses will fall at the same rate in a vacuum. This is also known as the "universal acceleration due to gravity."
According to Galileo's experiment on falling objects, both the light-weight set of keys and the heavy blob of clay will fall at the same rate. This is due to the principle of gravitational acceleration, which states that all objects near the surface of the Earth will experience the same acceleration due to gravity regardless of their mass. Thus, the weight of the objects does not affect their rate of fall.
