How fast is projectile moving at the top of its trajectory
A projectile is fired straight up at 141 m/s. How fast is it moving at the top of its trajectory? Suppose it is fixed upward at 45 abouve the horizontal plane. How fast is it moving at the top of its curved trajectory? Explain.
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A NASA satellite has just observed an asteroid that is on a collision course with the Earth. With what speed will it hit the Earth's surface, neglecting friction with the atmosphere?
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How fast is it moving at the top of its trajectory? Suppose it is fixed upward at 45 abouve the horizontal plane. How fast is it moving at the top of its curved trajectory? Explain.
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