You drop a 1.8 kg textbook to a friend who stands on the ground 9 m below the textbook with outstretched hands 1.50 m above the ground.
(a) What is the speed of the textbook when it reaches the hands?
m/s
(b) If we substituted a second textbook with twice the mass, what would its speed be?
m/s
(c) If, instead, the textbook were thrown down, would the answer to (a) increase, decrease, or remain the same?
I will be happy to critique your thinking on this.
What did Galelo prove at Pisa?
1 answer
Galileo Galilei famously demonstrated his law of falling bodies at the Leaning Tower of Pisa in 1589. He showed that all objects, regardless of their mass, fall at the same rate of acceleration due to gravity. This was a revolutionary idea at the time, as it contradicted the Aristotelian view that heavier objects fall faster than lighter objects.