- A stone falls from the top of a cliff `122.5` `m` high. Find the time taken to reach the sea and the velocity of the stone when it does so.
- A stone thrown downwards from a cliff with a velocity of `4` `m`/`s` reaches the sea in `3` `s`. Find the height of the cliff.
- An object released from a helicopter rising at `12` `m`/`s` reaches ground in `10` `s`. What is the height of the helicopter at the moment of release?
- An object is thrown vertically downwards with a velocity of `7.0` `m`/`s` from a height of `247.5` `m`. Find the velocity with which it reaches the ground and the time taken.
- An object is thrown horizontally from a tower `45` `m` high with a horizontal velocity of `30` `m`/`s`. If the acceleration due to gravity is `10` `m`/`s^2`, how long does it take to reach the ground?

**Recommended Lessons**

- A stone falls from the top of a cliff `122.5` `m` high. Find the time taken to reach the sea and the velocity of the stone when it does so.
- A stone thrown downwards from a cliff with a velocity of `4` `m`/`s` reaches the sea in `3` `s`. Find the height of the cliff.
- An object released from a helicopter rising at `12` `m`/`s` reaches ground in `10` `s`. What is the height of the helicopter at the moment of release?
- An object is thrown vertically downwards with a velocity of `7.0` `m`/`s` from a height of `247.5` `m`. Find the velocity with which it reaches the ground and the time taken.
- An object is thrown horizontally from a tower `45` `m` high with a horizontal velocity of `30` `m`/`s`. If the acceleration due to gravity is `10` `m`/`s^2`, how long does it take to reach the ground?

**Recommended Lessons**