In the Olympic Games, a hammer thrower initially at rest is throwing a hammer my 7.3 kg after three revolutions with a velocity of v 29 ms¹. (Assumptions: the angular velocity increases linearly, and the radius is r= 1.2 m) a) Compute the (linear) tangential acceleration and the angular acceleration. b) Compute the centripetal acceleration shortly before releasing the hammer. c) What is the force that the athlete is exerting on the hammer (shortly before re- leasing it)? d) And what is the angle of the force to the radius of the circular motion, neglecting gravity?

In the Olympic Games, a hammer thrower initially at rest is throwing a hammer my 7.3 kg after three revolutions with a velocity of v 29 ms¹. (Assumptions: the angular velocity increases linearly, and the radius is r= 1.2 m) a) Compute the (linear) tangential acceleration and the angular acceleration. b) Compute the centripetal acceleration shortly before releasing the hammer. c) What is the force that the athlete is exerting on the hammer (shortly before re- leasing it)? d) And what is the angle of the force to the radius of the circular motion, neglecting gravity?

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.19P: Plot the earths gravitational acceleration g(m/s2) against the height h (km) above the surface of...

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