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3 years ago

10

A hoodlum throws a stone vertically downward with an initial speed of 12.0 m/s from the roof of a building,30.0 m above the grou

nd. (a) how long does it take the stone to reach the ground

1 answer:

bogdanovich [222]3 years ago

8 0

S=ut +1/2at2
30=12t+1/2*10*t2
5t2+12t-30=0

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kari74 [83]

Answer:

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By Boyle's law:

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3 years ago

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Explain how the fountain pen is filled up with ink

Leno4ka [110]

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torisob [31]

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