Answered: 44. An object is shot from the ground…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 22PE: A farmer wants to fence off his four-sided plot of flat land. He measures the first three sides,...

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44. An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which one rises to a higher height? (assume no air resistance) a. 25 degrees c. 65 degrees b. same for both d. 45 degrees 45. An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which is in the air for longer? (assume no air resistance) a. 25 degrees c. 65 degrees b. same for both d. 25 degrees 46. If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first? a. shot bullet c. dropped bullet b. hit at the same time d. all of the above 47. Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs 12 kg and her arm is.65 meters long. a. 0.38 N C. 1.23 N b. 0.55 N d. 1.66 N 48. If a sprinter runs in a circle of radius 50 min 31 seconds at a constant speed, how fast were they running? a. 1.61 m/s b. 5.07 m/s c. 3.22 m/s d. 10.1 m/s

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