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2. If you drop an stone from a height 100 m with initial velocity 2 m/s down, how long will it take to hit

2. If you drop an stone from a height 100 m with initial velocity 2 m/s down, how long will it take to hit the ground. 3. If you throw a stone of mass 2 Kg with initial velocity 10 m/s straight up how long will it take to reach the highest height, and what will be that height?

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