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Bowling Ball Return Parts
Help finding angular speed and angular acceleration?
You are participating in league bowling with your friends. Time after time, you notice that your bowling ball rolls to you without slipping on the flat section of track. When the ball encounters the slope that brings it up to the ball return, it is moving at 3.91 m/s. The length of the sloped part of the track is 2.00 m. The radius of the bowling ball is 11.5 cm.
(a) What is the angular speed of the ball before it encounters the slope?
____ rad/s
(b) If the speed with which the ball emerges at the top of the incline is 0.40 m/s, what is the angle (assume constant) that the sloped section of the track makes with the horizontal?
____ °
(c) What is the magnitude of the angular acceleration of the ball while it is on the slope?
____ rad/s2
.........9
.........9
a) Let ω = angular speed of the ball
ω = v/r
ω = (3.91m/s)/(0.115m)
ω = 34 rad/sec ANSWER
b) 2gd = Vf^2 - Vi^2
2(9.8m/s^2)(sinθ)(2.00m) = (3.91m/s)^2 - (0.40m/s)^2
sinθ = [(3.91)^2-(0.40)^2]/[(2)(9.8)(2.00)]
θ = arcsin [(3.91)^2-(0.40)^2]/[(2)(9.8)(2.00)]
θ = 22.7° ANSWER
c) Let α = angular acceleration of the ball
a = αr
α = a/r
α = (-9.8m/s^2)(sin22.7°)/0.115m
α = - 32.9 rad/sec^2 ANSWER
Hope this helps.
teddy boy
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Arcade Alley Bowlercade
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DescriptionBring a bowling alley right into your own living room. The Arcade Alley Electronic Bowlercade provides you with all the features of a real bowling alley. Enjoy realistic arcade sounds, automatic pin reset, ball return and automatic scoring... |
Before learning how to play the game, a bowler will need to identify the equipment needed and know how to use it. They should know where to find the necessary equipment, select the right shoe size, choose the right weight of ball to be used, wear comfortable clothing appropriate for the game, and return the equipment to the proper place after the game.
The bowling ball selected must be of the proper weight and grip; the player's finger size and the space between holes are essential for comfort. Most players use the conventional grip (used in bowling alleys), after fitting the two middle fingers and thumb in the holes, they must test its fit by swinging the ball lightly. Amateurs can find equipment at bowling centers where they can use the equipment for free. However, for advanced and intermediate players, they will want to purchase their own equipment. These players use the Semi-fingertip grips where the thumb and the fore fingers are inserted into the ball’s holes
The usual weight of the ball is approximately 14 to 16 lbs. for males and 10 to 14 lbs. for females. Young players are given the 4 to 6 lb. balls. The swing indicates whether or not the weight of the ball is appropriate for a player. If not, it will cause the shoulder to dip and the player to be out of balance. If the swing causes lofting, it could be too light. The speed of the ball when it is released can also show if it fits the player. Bowling instructors advise professional bowlers to have their own bowling ball which is drilled especially to fit the player's fingers for consistency and comfort. As with any other sport, strength and physical fitness must be taken into consideration before playing the game.
Aside from the ball, players will need a few other things:
- Bowling shoes - these are designed to allow the player to slide on either foot. The left shoe has a sole that allows the right-handed player to use the five-step approach and vice versa;
- A bowling bag for the ball;
- A rosin bag, which is used by the players to insure that the hands are kept dry; and
- A bowling towel, to get rid of oil and dirt.
To practice, players must make sure that the proper equipment is pre-ordered or reserved to ensure proper hand fit and weight. Ask for assistance from the pro shop staff at the local bowling centers when choosing your equipment. Some bowling centers just charge per game and lend the equipment for free while others rent the equipment. In the long run, when budget permits, confidence is gained when a player owns his equipment. Have fun bowling!
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Article Source: ArticlesBase.com - Choosing the Right Gear for Bowling Fun