A0.70 kg teddy bear is nudged off a window sill and falls 3.35 m to the ground. what is its kinetic energy at the instant it hits the ground?
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Ответ:
At the given height potential energy is:
When the body reaches ground height is 0m and the potential energy is 0J. This means that all potential energy is transformed into kinetic energy.
At the moment when body hits the ground the kinetic energy is 23J.
Ответ: