A rock is thrown downward from an unknown height above the ground with an initial speed of 10 m/s. It strikes the ground 3.0 s later. Determine the initial height of the rock above the ground.
1) 44 m
2) 14 m
3) 74 m
4) 30 m
5) 60 m
Answer: 3
A rock is thrown downward from an unknown height above the ground with an initial speed of 10 m/s. It strikes the ground 3.0 s later. Determine the initial height of the rock above the ground.
1) 44 m
2) 14 m
3) 74 m
4) 30 m
5) 60 m
Answer: 3