4) A racquetball player encounters a ball coming towards him at a velocity of 22 m/s and at an angle of 5° below the horizontal. He is able to return the ball at a velocity of 30 m/s at an angle of 15° above the horizontal. The 40 gram racquetball is in contact with the racket for 0.04 s. a) Clearly draw coordinate systems for the incoming and outgoing velocity of the racquetball (there should be two). Write out the necessary transformation arrays. b) Draw an FBD of the racquetball. Compute the magnitude of the force exerted by the racquet on the ball. c) Find the angle between the force and horizontal. [Ans. to Check: 6.99°] „V½ = 30 m/s

4) A racquetball player encounters a ball coming towards him at a velocity of 22 m/s and at an angle of 5° below the horizontal. He is able to return the ball at a velocity of 30 m/s at an angle of 15° above the horizontal. The 40 gram racquetball is in contact with the racket for 0.04 s. a) Clearly draw coordinate systems for the incoming and outgoing velocity of the racquetball (there should be two). Write out the necessary transformation arrays. b) Draw an FBD of the racquetball. Compute the magnitude of the force exerted by the racquet on the ball. c) Find the angle between the force and horizontal. [Ans. to Check: 6.99°] „V½ = 30 m/s

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A boat is towed at the rate of 12mi/hr. At t = 0, the towing line is cast off and a man in the boat begins to row in the direction of motion exerting force of 20 lb. The combined weight of the man and the boat is 480lb. The water resists the motion with a force equal to 1.7v lb, where v is the velocity of the boat in feet per second. Derive a DE leading the velocity of the boat.
Two American football players with a mass of 75 kg and a mass of 100 kg towards each other at a speed of 6 m/sec and 8 m/sec respectivelythey run. Immediately after hitting each other, they move together at the same speed. Two footballers killed after collisionwhich of the following is its speed?Please select one:a.4.6 m / sb.6.9 m / sc.3.4 m / sd.2 m / se.7.1 m / s
An object is thrown in horizontal with an initial velocity v0= 10 m/s from the roof of a building 20 m tall. How far from the building does it hit the ground?
A projectile is launched with an initial velocity of 34.0 m/s at an angle of 35.0° elevation. What are the components of the velocity of the projectile after 3.00 s?
A ball is thrown so that it just dears 10-ft fence 60 ft away, if it left the hand 5 ft above the ground and at angle of 60 degrees to horizontal, what was the initial velocity of the ball
A hunter shoots his rifle at an angle of 27.2° above the horizontal. He is holding the rifle so that the muzzle of the rifle is exactly 2 m above the ground. The muzzle velocity of the rifle is 412 m/s. How long (in seconds) does it take the bullet to reach its maximum height?
360 N marine in basic training climbs a 15 m vertical rope at uniform speed in 8 minutes. His output power
A projectile is projected at a speed of 98 m/s, making an angle of 300 in the horizontal direction. The vertical component of its velocity after 5.0 sec of its flight will be_________?
Question: Using a powerful air gun, a steel ball is shot vertically upward with a velocity of 80m/s, followed by another shot after 5 seconds. Find the initial velocity of thesecond ball in order to meet the 1st ball 150 meters from the ground.
An automobile starting from rest acquires a speed of 40 mi/hr in 12 sec.What is its average acceleration?
If there are two cannons, both completely identical and were shot at same speed and angle. One is shot directly forward, the other one directly upward. If Cannon 2 reaches a max. height from the ground that is eleven-fourths of that of Cannon 1, what will be the time of flight of Cannon 2 in terms of the time of flight of the first cannon? 7/4 tcannon1 15/4 tcannon1 15/8 tcannon1 7/2 tcannon1
15. An automobile is traveling at 25 m/s. It takes 0.3 sec to apply the brake after which the deceleration is 6 m/s2. How far does the automobile travel before it stops? ANS: 60m 17. Water drips from a faucet at uniform rate of 3 drops per second. Find the distance between 2 successive drops if the upper drop has been in motion ¼ second. ANS: 1.36 m 20. A skier is filmed by a motion picture photographer who notices him traveling down a ski run. The skier travels 36 m during the fourth second of the filming and 48 m during the sixth second. What distance did he cover in the eight seconds of filming? Assume that the acceleration is uniform throughout. ANS: 312 m