![FREE FALL,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-1-2048.jpg?cb=1669072267)
![Freely falling,[object Object],If air resistance is disregarded, all objects dropped near the surface,[object Object],of a planet fall with the same constant acceleration. This acceleration,[object Object],is due to gravitational force, and the motion is referred to as free fall.,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-2-2048.jpg?cb=1669072267)
![Freely falling,[object Object],The acceleration due to gravity is denoted with the symbols ag (generally),[object Object],or g (on Earth’s surface). The magnitude of g is about 9.81 m/s2.,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-3-2048.jpg?cb=1669072267)
![Acceleration is constant during upward and downward motion,[object Object],In the photograph on the left, the upward displacement of the ball,[object Object],between each successive image is smaller and smaller until the ball stops and finally begins to move with an increasing downward velocity, as shown on the right.,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-4-2048.jpg?cb=1669072267)
![Formulas ,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-5-2048.jpg?cb=1669072267)
![A robot probe drops a camera off the rim of a 239 m high cliff on Mars, where the free-fall acceleration is −3.7 m/s2.,[object Object],a. Find the velocity with which the camera hits the ground.,[object Object],b. Find the time required for it to hit the ground.,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-6-2048.jpg?cb=1669072267)
![A flowerpot falls from a windowsill 25.0 m above the sidewalk.,[object Object],a. How fast is the flowerpot moving when it strikes the ground?,[object Object],b. How much time does a passerby on the sidewalk below have to move out of the way before the flowerpot hits the ground?,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-7-2048.jpg?cb=1669072267)
![A tennis ball is thrown vertically upward with an initial velocity of +8.0 m/s.,[object Object],a. What will the ball’s speed be when it returns to its starting point?,[object Object],b. How long will the ball take to reach its starting point?,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-8-2048.jpg?cb=1669072267)
![Jason hits a volleyball so that it moves with an initial velocity of 6.0 m/s straight upward. If the volleyball starts from 2.0 m above the floor, how long will it be in the air before it strikes the floor?,[object Object]](https://image.slidesharecdn.com/freefall-110726084730-phpapp02/75/free-fall-9-2048.jpg?cb=1669072267)
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