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lecture06

# lecture06 - Up and down motion Up and down motion Throw a...

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Physics 1 9 Apr. 2010 Free Fall Up and down motion Freely Falling Bodies Physics 1 – Morrison 9 April 2010

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Physics 1 9 Apr. 2010 Free Fall Up and down motion Free Fall In the absence of air resistance, a falling body experiences a constant acceleration , so its motion can be described by the methods we’ve been learning.
Physics 1 9 Apr. 2010 Free Fall Up and down motion Free Fall In the absence of air resistance, a falling body experiences a constant acceleration , so its motion can be described by the methods we’ve been learning. Near the surface of the earth, the acceleration due to gravity has the approximate value g = 9 . 8 m / s 2 = 32 ft / s 2 .

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Physics 1 9 Apr. 2010 Free Fall Up and down motion Free Fall Let’s experiment!
Physics 1 9 Apr. 2010 Free Fall

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Unformatted text preview: Up and down motion Up and down motion Throw a ball vertically upward from the roof with upward speed of 15.0 m/s. On the way back down, it misses the roof edge and continues to fall. I Find the position and velocity of the ball at t = 1.0 s and t = 4.0 s. I Find the velocity when the ball is 5.0 m above the roof. I Find the maximum height reached and the time at which it is reached. Physics 1 9 Apr. 2010 Free Fall Up and down motion Up and down motion Physics 1 9 Apr. 2010 Free Fall Up and down motion Up and down motion I Find the acceleration of the ball when it is at its maximum height. I Find the time at which the ball is 5.0 m below the roof....
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