Calculate with what minimum average speed must he move

Reference no: EM13530293

The lob in tennis is an effective tatic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net. Suppose that you loft the ball with an initial speed of 15.0m/s, at an angle of 50 degrees above the horizontal. At this instant your opponent is 10.0m away from the ball. He begins moving away from you 0.30s later, hoping to reach the ball and hit it back at the moment that it is 2.10m above it launch point. With what minimum average speed must he move?(Ignore the fact that he can stretch, so that his racket can reach the ball before he does.)

Reference no: EM13530293

Questions Cloud

Explain how many milligrams of silicon tetraflouride : How many milligrams of silicon tetraflouride, a gas, at room temperature, would fill the same volume as that occupied by 375 grams of carbon monoxide at 190*C and 500 Torr

What is the electric field felt by the particle : The force on a charged particle of mass 2.5 × 10-3 kg and charge 4.5 mC is observed to be 0.25 N/C. what is the electric field felt by the particle

Eukaryotic protein-encoding genes : Eukaryotic protein-encoding genes differ from their prokaryoticcounterparts in that eukaryotic genes

Compute the change in gibbs free energy for reactions : Using Thermodynamic data from your notes, calculate the change in Gibbs free energy for each of the following reactions using Gf's. In each case indicate whether the reaction is spontaneous under standard conditions.

Calculate with what minimum average speed must he move : The lob in tennis is an effective tatic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net. With what minimum average speed must he move

What is the frequency between stop codons in a mrna molecule : Carbohydrates represent approximately 50% of human caloric intake yet only ~1% of tissue weight. Why. What is the frequency between stop codons in a mRNA molecule ofrandom sequence?

Evaluate and ph for the solution : Consider preparing a buffer solution by bubbling 0.64 mols of H3N(g) into 250 mL of 1.28 M HONO2. Calculate [H3O+] and pH for this solution. Show all pertinent work including equations for any B/L A/B reactions which occurred on solution preparati..

Find how long will it take particle to complete one orbit : A 15.0-µC particle with a mass of 2.80 10?5 kg moves perpendicular to a 1.01-T magnetic field in a circular path of radius 28.0 m. How long will it take the particle to complete one orbit

Discuss design and development challenges in eportfolio : Design the ePortfolio to be professional in appearance. Be sure to exemplify effective and ethical uses of technology so that the ePortfolio logically organized in a visually appealing way.

User Account

All Pages