A stone is dropped from the top of a 40 m high tower. Calculate its speed after 2 s. Also find the speed with which the stone strikes the ground.
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- It's speed after 2s.
- The speed with which the stone strikes the ground. The speed of the stone after 2s is 19.6 m/s.
- Therefore, the speed with which the stone strikes the ground is 28m/s.
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