The fast server in women's tennis is Venus Williams, who recorded a serve of 130 mi/h (209 km/h) in 2007. If her racket pushed on the ball for a distance of 0.15 m, what was the average acceleration of the ball during her serve?
use the formulav^2 = u^2 + 2*a*swhere v is the final velocity of the ballu is the initial velocity of the balls is the displacement of the balla is the acceleration Givenv=130u=0s=0.1a=? 130^2 = 0^2 + 2a(0.1)solve for a a = 84500 m/s2
