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For a freely falling object in a vacuum, a is the acceleration of gravity, g. If we record the time required for an object to fall a distance s in a...

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For a freely falling object in a vacuum,  a  is the acceleration of gravity,  g .  If we record the time required for an object to fall a  distance  s  in a time  t , we can solve for g.  Using the simulation, record the time required for the ball to fall 1, 2, 3, 4, 5, and 6  meters.  Organize your results in a table, as follows (the first row has been completed for you).  Round numbers to the  nearest two decimals. s (distance, m) t (time, s) 2s t 2 (2s/t 2 )= g 1 0.44 2 0.19 10.33 2         3         4         5         6          Answer the following questions. Why are all the number in the last column approximately the same?   Which of the six trials would probably yield the most accurate estimate for  g ?  Why?   Compare your answer with the accepted value for g.  How would you account for the discrepancy, if any?   1.   A snail travels for a year on a straight line, covering 2.7 km.  What is its average velocity, in m/s?  2. The parachute on a top fuel dragster slows the car from 300 mph to 100 mph in 5 seconds.  What is  the average deceleration, in  g s (acceleration of gravity)?  (Hint:  Use an online coversion app, and work in  MKS [metric] units.0 3.  A small powder charge propels a shoulder-launched antitank missile from its tube at 10 m/s.  At 0.3  seconds after launch, the rocket motor ignites and accelerates the missile at 50m/s 2 .  How far (from the  tube) has the missile traveled after two seconds?  (Hint:  Calculae two distances, and add them together;  the distance before the rocket ignites, and the distance after.)
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Physics-8192885.doc

For a freely falling object in a vacuum, a is the acceleration of gravity, g. If we record the time required for an object to fall a distance s in a time t, we can solve for g. Using the...

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