During the 2007 French Open, Venus Williams hit the fastest recorded serve in a

Question

During the 2007 French Open, Venus Williams hit the fastest recorded serve in a premier women’s match, reaching a speed of 58 m/s (209 km/h). What is the average force exerted on the 0.057-kg tennis ball by Venus Williams’ racquet, assuming that the ball’s speed just after impact is 58 m/s, that the initial horizontal component of the velocity before impact is negligible, and that the ball remained in contact with the racquet for 5.0 ms (milliseconds)?

Choose correct answers:

660 N

1660 N

25 N

4000 N

Explanation / Answer

Here ,

final speed of ball , v = 58 m/s

mass of ball , m = 0.057 Kg

Using second law of motion

force = change in momentum /time

force = 0.057 * (58 - 0)/.005

force = 661 N = 660 V

the force acting on the ball is 660 N

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.