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Gravity Problem??
1) A college student wants to toss a textbook to his roommate who is leaning out the window directly above him. He throws the book up with a velocity of 8.0m/s. The roommate catches the book while it is traveling 3.0m/s upward.
a.) How long was the book in the air?
b)How far did the book travel in the upward direction?
2.) During the 2004 Summer Olympics Emilie Heymans and Blythe Hartley won Canada's first meals with 10.0m synchronized dive. If the divers' heads entered the water 55km/h and each diver was 1.6m tall, at what speed did they initiate their dive?
Not Sure But Gravity?
I was supposed to be their for the lesson but i couldn't because i had a doctors appointment, and i am completely clueless on this lesson and i don't want to be left behind in physics. So far I am understanding it but i don't know what equations they're asking for in these questions. I'm guessing though we have to include gravity.
Homework Statement
1) A college student wants to toss a textbook to his roommate who is leaning out the window directly above him. He throws the book up with a velocity of 8.0m/s. The roommate catches the book while it is traveling 3.0m/s upward.
a.) How long was the book in the air?
b)How far did the book travel in the upward direction?
2.) During the 2004 Summer Olympics Emilie Heymans and Blythe Hartley won Canada's first meals with 10.0m synchronized dive. If the divers' heads entered the water 55km/h and each diver was 1.6m tall, at what speed did they initiate their dive?
Homework Equations
Not Sure But Gravity?
The Attempt at a Solution
I was supposed to be their for the lesson but i couldn't because i had a doctors appointment, and i am completely clueless on this lesson and i don't want to be left behind in physics. So far I am understanding it but i don't know what equations they're asking for in these questions. I'm guessing though we have to include gravity.