__Freefall Practice Problems__**A block rests at the edge of a platform that is 20 meters above level ground. The block falls from the edge of the platform. Find the time it will take for the block to reach the ground.****G:****U:****E:****S:****S:**

**An object is released from rest on a planet that has no atmosphere. The object falls freely for 3.0 meters in the first second.What is the magnitude of the acceleration due to gravity on the planet?**

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**A ball is thrown straight up in the air. When the ball reaches its highest point, what is the velocity of the ball?**

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**An object slides off a roof 10 meters above the ground. The time between the object's leaving the roof and hitting the ground is most nearly**

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**A rock is dropped from the top of a 45‑meter tower. How fast is it moving when it hits the ground?**

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**An object is dropped from rest from the top of a cliff on Earth.If air resistance is negligible, what is the distance the object travels during the first 6 s of its fall?**

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**A flare is dropped from a plane flying over level ground. The flare takes 4.0 s to reach the ground. Assume air resistance is negligible.How high was the plane?**

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**An object slides off a roof 15 meters above the ground. How long will it take for the block to reach the ground?**

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__Use for problems 9 & 10__**A block falls from a platform that is above level ground. It takes 2.5 s for the block to reach the ground.**

**What is the height of the platform?**

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**What is the speed of the object when it hits the ground?**

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