When kicking a football, the kicker rotates his leg about the hip joint. a) If the velocity of the tip of the kicker’s shoe is 34 m/s and the hip joint is 1 meters from the tip of the shoe, what is the shoe tip’s angular velocity in degrees/sec? b) The shoe is in contact with the initially stationary 470 gram football for 24 ms. What average force is exerted on the football to give it a velocity of 21 m/s when it begins traveling in air after leaving the foot? c) Find the maximum range (horizontal distance) in meters of the football, neglecting air resistance. It happens when the launch angle is 45 degrees above the horizon.
When kicking a football, the kicker rotates his leg about the hip joint. a) If the velocity of the tip of the kicker’s shoe is 34 m/s and the hip joint is 1 meters from the tip of the shoe, what is the shoe tip’s angular velocity in degrees/sec? b) The shoe is in contact with the initially stationary 470 gram football for 24 ms. What average force is exerted on the football to give it a velocity of 21 m/s when it begins traveling in air after leaving the foot? c) Find the maximum range (horizontal distance) in meters of the football, neglecting air resistance. It happens when the launch angle is 45 degrees above the horizon.
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter6: Uniform Circular Motion And Gravitation
Section: Chapter Questions
Problem 8PE: Integrated Concepts When kicking a football, the kicker rotates his leg about the hip joint. (a) If...
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When kicking a football, the kicker rotates his leg about the hip joint.
a) If the velocity of the tip of the kicker’s shoe is 34 m/s and the hip joint is 1 meters from the tip of the shoe, what is the shoe tip’s angular velocity in degrees/sec?
b) The shoe is in contact with the initially stationary 470 gram football for 24 ms. What average force is exerted on the football to give it a velocity of 21 m/s when it begins traveling in air after leaving the foot?
c) Find the maximum range (horizontal distance) in meters of the football, neglecting air resistance. It happens when the launch angle is 45 degrees above the horizon.
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