Which falls faster?
OA light-weight set of keys
O A heavy blob of clay
O Both fall at the same rate
1 answer
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."