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A ball is projected upward at time t = 0.00 s, from a point on a roof 70 m above the ground and ...

GollumOfOz

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A ball is projected upward at time t = 0.00 s, from a point on a roof 70 m above the ground and ...

A ball is projected upward at time t = 0.00 s, from a point on a roof 70 m above the ground and experiences negligible air resistance. The ball rises, then falls and strikes the ground. The initial velocity of the ball is 28.5 m/s. Consider all quantities as positive in the upward direction. The velocity of the ball when it is 39 m above the ground is closest to
A) -38 m/s.
B) -30 m/s.
C) -23 m/s.
D) -15 m/s.
E) -45 m/s.

Textbook

Principles & Practice of Physics

Edition: 1^st

Author: Mazur

Read 154 times

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smith239

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More solutions for this book are available here

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GollumOfOz Author

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Makes sense to me

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Noah K.

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