A stone is thrown from the top of a building with an initial velocity of 20 m/s downward. The top of the building is 60 m above the ground. How much time elapses between the instant of release and the instant of impact with the ground?

a. 2.0 s
b. 6.1 s
c. 3.5 s
d. 1.6 s
e. 1.0 s


a

Physics & Space Science

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A stellar core with a mass greater than 3 solar masses will collapse until it reaches _____

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The highest tides occur when

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