A bowler once measured that she can throw the bowling ball with a speed of 15miles/hour. If it takes 3 seconds from the ball to travel from the beginning of the lane down to the pins, how far is this distance in feet?

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Newtons laws of motion

Lexy is correct because angle r is between the incident wave,  n  = 0, and a diffracted wave.