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godkills
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While riding on an elevator descending with a constant speed of 3.0 m/s, you accidentally drop a book from under your arm.
How long does it take for the book to reach the elevator floor, 1.2 m below your arm?
What is the book’s speed when it hits the elevator floor?My question is why is 3.0 m/s in constant speed ignored in this question?
We are using the equation x = x0 + v0 + 1/2(a)(t2)
Why is that v0 is not plugged in? When 3.0 m/s is v0 (velocity).
Since velocity here is descending then the velocity in this question is -3.0 m/s correct?
also i am having problem solving part b in which i don't know where to begin
How long does it take for the book to reach the elevator floor, 1.2 m below your arm?
What is the book’s speed when it hits the elevator floor?My question is why is 3.0 m/s in constant speed ignored in this question?
We are using the equation x = x0 + v0 + 1/2(a)(t2)
Why is that v0 is not plugged in? When 3.0 m/s is v0 (velocity).
Since velocity here is descending then the velocity in this question is -3.0 m/s correct?
also i am having problem solving part b in which i don't know where to begin
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