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14 October, 06:47

suppose a rock on Earth is dropped in a vacuum and has initial speed of 0 m/s. what is the rock's speed after 2 seconds, in m/s, if it encounters no air resistance

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  1. 14 October, 06:55
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    39m/s is the rocks speed
  2. 14 October, 06:58
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    What is the rock's speed after 3 seconds, in m/s, if it encounters no air resistance? ... Well, we can use the falling objects equation, which states that. d=12>2. where g is the gravitational acceleration, t is the time in seconds. So, plugging in values into the equation, we get. d=12⋅9.81 m/s2⋅9 s2.
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Home » Physics » suppose a rock on Earth is dropped in a vacuum and has initial speed of 0 m/s. what is the rock's speed after 2 seconds, in m/s, if it encounters no air resistance
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