A child and sled with a combined mass of 53.8 kg slide down a frictionless hill that is 11.5 m high at an angle of 25° from horizontal. The acceleration of gravity is 9.81 m/s. If the sled starts from rest, what is its speed at the bottom of the hill?
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Ответ:
When I was thirteen years old, we left our hometown for the last time. I was forced to start high school in a strange place. It was hard, but I learned that being thrown into a new environment can be great.
Explanation:
It eez what it eez