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In an attempt to measure the gravitational field intensity (this is the same as the acceleration due to gravity) of an object in free-fall, Latoya
In an attempt to measure the gravitational field intensity (this is the same as the acceleration due to gravity) of an object in free-fall, Latoya used a stopwatch to time how long it took a ball, dropped from rest, to hit the ground. She found it was 3.3 s and she dropped the ball from a height of 50.0 m. (9 marks) a. Calculate the average velocity of the ball. b. We know that when she dropped the ball it would be moving quite slowly and when the ball hit the ground it would be moving quite fast. At what point during the ball's fall will the average speed equal the instantaneous speed? Explain your answer. c. Calculate the final velocity of the ball as it hits the ground. d. Using Sally's measurements from this experiment, calculate the gravitational field intensity (acceleration due to gravity) for the object in free fall. e. The accepted value for the gravitational field intensity (acceleration due to gravity) is 9.8 m/s2 [down]. Give one reason why the value calculated in part d is less than this
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