mathstresser
Junior Member
- Joined
- Jan 28, 2006
- Messages
- 134
I should know how to do this. But for some reason I don't.
A stone is released from rest and dropped into a deep well. 8 seconds later, the sound of the stone splashing into the water at the bottom of the well returns to the ear of the person who released the stone. How long does it take the stone to drop to the bottom of the well? How deep is the well? Ignore air resistance. Note: the speed of sound is 340 m/s.
Does that mean that it takes a total of 8 seconds to drop the stone and hear the splash? Or does it mean that after the stone hits the water, the splash can be heard 8 seconds later?
Either way, I don't know what to do.
A stone is released from rest and dropped into a deep well. 8 seconds later, the sound of the stone splashing into the water at the bottom of the well returns to the ear of the person who released the stone. How long does it take the stone to drop to the bottom of the well? How deep is the well? Ignore air resistance. Note: the speed of sound is 340 m/s.
Does that mean that it takes a total of 8 seconds to drop the stone and hear the splash? Or does it mean that after the stone hits the water, the splash can be heard 8 seconds later?
Either way, I don't know what to do.