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A professional golfer teed off at the 13th hole of the U.S. Open. It took 0.0020 seconds for the head of her club to travel the last 10 centimeters (cm)before the club hit the ball. The velocity of the club can be calculated with the following formula, where V is the velocity in kilometers per hour (km/h), d is the distance the club travels in centimeters (cm), and t is the time in seconds (s):


V = d/t x 36/1000


What is the velocity in km/h of her club during this swing?

2007-12-12 12:00:09 · 3 answers · asked by CandyxAcid 3 in Science & Mathematics Mathematics

3 answers

Just plug in d = 10 and t = 0.0020

V = 10 / 0.0020 * 36/1000
V = 10 / (2/1000) * 36/1000
V = 10 * 1000/2 * 36/1000
V = 10 * 500 * 36/1000
V = 5000 * 36 / 1000
V = 5000/1000 * 36
V = 5 * 36
V = 180 km/h

2007-12-12 12:04:27 · answer #1 · answered by Puzzling 7 · 0 0

V = d/t x 36/1000
where d=10; t=0.002

V = 10/0.002 x 36/1000
V = 360/2 = 180Km/h

2007-12-12 12:05:26 · answer #2 · answered by David F 5 · 0 0

Just plug the numbers in.

V=10/0.0020x36/1000

Then break the calculator out to solve.

2007-12-12 12:10:52 · answer #3 · answered by Emmy 3 · 0 0

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