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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 37.5 m/s and the hip joint is 1.15 m from the tip of the shoe, what is the shoe tip's angular velocity? rad/s b) The shoe is in contact with the initially nearly stationary 0.510 kg football for 44.0 ms. What average force is exerted on the football to give it a velocity of 24.5 m/s? N c) Find the maximum range of the football, neglecting air resistance. mA truck with 0.300 m radius tires travels at 31.0 m/s. 3) What is the angular velocity of the rotating tires in radians per second? rad/s b) What is this in revolutions per minute? rpm The propeller of a World War II fighter plane is 3.26 m in diameter. a) What is its angular velocity in radians per second if it spins at 1250 rpm? rad/s b) What is the linear speed of its tip at this angular velocity if the plane is stationary on the tarmac? m/s c) What is the centripetal acceleration of the propeller tip under these conditions? Calculate it in multiples of g. gAn ordinary workshop grindstone has a radius of 8.00 cm and rotates at 5500 rpm. a) Calculate the centripetal acceleration at its edge in multiples of g. g b) What is the linear speed of a point on its edge? m/s