mvmchristsehudf mvmchristsehudf

12-12-2016
Physics

Answered

The fast server in women's tennis is Venus Williams, who recorded a serve of 130 (209 ) in 2007.

If her racket pushed on the ball for a distance of 0.10 , what was the average acceleration of the ball during her serve?

Verified Answer :

scme1702 scme1702

12-12-2016

Converting 209 km/hr to m/s:
209 km/hr = 58.0 m/s
Contact distance = 0.1 m

Using the equation of motion:
2as = v² - u², where initial velocity is 0

a = (58)² / (2 x 0.1)
a = 1.68 x 10⁴ m/s²

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