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# Answer to Question #40442 in Mechanics | Relativity for Parhesh Kumar

Question #40442
please help, when a golfer hits a ball is in contact with the ball for about 0.0005 seconds and the ball leaves the club with a speed of 70ms^-1. The mass of the ball is 46g. Determine the mean accelerating force.
1
2014-03-24T09:50:42-0400

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Assignment Expert
25.03.14, 16:31

Dear Parhesh,

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Concerning acceleration value you have asked, given numbers are totally viable.
* http://www.golf-simulators.com/physics.htm for contact time
* http://hypertextbook.com/facts/2006/BishoyEmmanuel.shtml and http://www.berkeleyhallclub.com/pdfs/golftip.pdf for a ball speed

Parhesh
25.03.14, 04:37

Thank you very much for the answer. However I was confused that how the acceleration of a object be so great. The acceleration of the ball in 0.0005 seconds is 140km per hour. That kind of acceleration wouldn't be possible by human force, should it??