Pre-Lab Q4: A ball rolls off the edge of a table that is 1.40 meters tall with a

Question

Pre-Lab Q4: A ball rolls off the edge of a table that is 1.40 meters tall with a horizontal velocity of 5.00 m/s. How long does it take for the ball to hit the ground assuming the ball is in free fall? a) 0.535 s b) 1.40s c) 0.980s d) 0.286 s e) 5.00 s Pre-Lab Q5: A ball rolls off the edge of a table that is 1.40 meters tall with a horizontal velocity of 5.00 m/s. How far from the table does the ball land in the positive x direction assuming the ball is in free fall? a) 2.67 m b) 1.40 m c) 9.80 m d) 0m e) 5.35 m

Explanation / Answer

Q4) t = sqrt(2*h/g) = sqrt(2*1.4/9.81) = 0.535 sec

answer is a) 0.535 s

Q5) R = V*t = 5*0.535 = 2.675 m

so the answer is a) 2.67 m

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