- #1
Mei_797
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I am not good at typing out formulas and equations on the internet, so I took pictures of what I did instead. I hope that's not too informal.
1. Homework Statement
A rock is tossed straight up with a velocity of 19 m/s. When it returns it fell into a 10 m deep hole.
Q: What is the rock's velocity as it hits the bottom of the hole?
So in the end I figure out that I am suppose to plug 19 m/s as my initial velocity, but I don't get why.
If the rock is tossed straight up should it not means that the initial velocity = 0 because initially the rock is at rest?[/B]
1. Homework Statement
A rock is tossed straight up with a velocity of 19 m/s. When it returns it fell into a 10 m deep hole.
Q: What is the rock's velocity as it hits the bottom of the hole?
Homework Equations
The Attempt at a Solution
If the rock is tossed straight up should it not means that the initial velocity = 0 because initially the rock is at rest?[/B]