commanderbeast945 commanderbeast945

25-09-2019
Physics

contestada

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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tarwar2002 tarwar2002

25-09-2019

Answer:

39m/s is the rocks speed

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xcortter xcortter

25-09-2019

Answer:

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.

Explanation:

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need help please. any body