1. You drop a rock down a well and hear a splash 3 s later. How deep is the well assuming
that air resistance is negligible and the time needed for sound to travel up the well is also
2. The acceleration due to gravity on the Moon is about 1/6 that on Earth. If an object is
dropped near the surface of the Moon, how far does it fall in 10 s?
3. Charlie walks 1 km to the football stadium in 30 minutes, then sits and watches the game
for 2 hours, then walks 1 km home in 30 minutes. What was Charlie’s average speed
while he was gone?
I hope this is not a bothersome, but if someone can supply me with the answers + a level of reasoning for any or all 3 of these simple physics questions, I will be in debt to you.
Thanks in advance