Calculating Final Velocity of a Bowling Ball

In summary, a spherical bowling ball with mass 3.2 kg and radius 0.112 m is thrown down a lane with an initial speed of 8.1 m/s. The coefficient of kinetic friction between the ball and the ground is 0.32. Once the ball begins to roll without slipping, it moves with a constant velocity down the lane. To find the magnitude of the final velocity, one can use the work-energy theorem.
  • #1
ctwokay
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Homework Statement



A spherical bowling ball with mass m = 3.2 kg and radius R = 0.112 m is thrown down the lane with an initial speed of v = 8.1 m/s. The coefficient of kinetic friction between the sliding ball and the ground is μ = 0.32. Once the ball begins to roll without slipping it moves with a constant velocity down the lane.

Q:What is the magnitude of the final velocity?



Homework Equations



Conservation of Momentum
Conservation of Energy

The Attempt at a Solution



Just want to check should i use both Conservation of Momentum and Conservation of Energy to find the final velocity?

Is there a shorter formula to find final velocity?
 
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  • #2
hi ctwokay! :wink:
ctwokay said:
Just want to check should i use both Conservation of Momentum and Conservation of Energy to find the final velocity?

how can you use conservation of momentum? :confused:

use the work-energy theorem :smile:
 

1. How do you calculate the final velocity of a bowling ball?

In order to calculate the final velocity of a bowling ball, you will need to know the initial velocity, the acceleration, and the time the ball is in motion. You can use the formula final velocity = initial velocity + (acceleration x time) to find the final velocity.

2. What is the initial velocity of a bowling ball?

The initial velocity of a bowling ball is the speed at which it is thrown or released from the bowler's hand. This can vary depending on the strength and technique of the bowler, but is typically around 20-22 miles per hour.

3. How is acceleration involved in calculating final velocity?

Acceleration is the rate at which the bowling ball's velocity changes. In the case of a bowling ball, the acceleration is caused by the force of gravity pulling it downward. The acceleration due to gravity is approximately 9.8 meters per second squared. It is multiplied by the time the ball is in motion to determine the change in velocity.

4. Can you calculate the final velocity without knowing the initial velocity?

No, it is not possible to calculate the final velocity without knowing the initial velocity. The initial velocity is an essential component of the formula and without it, the calculation will be incomplete.

5. How does the final velocity of a bowling ball affect its impact on the pins?

The final velocity of a bowling ball can greatly impact its impact on the pins. A higher final velocity means the ball will have more kinetic energy, resulting in a stronger impact and potentially knocking down more pins. This is why bowlers often try to increase their ball speed to achieve a higher final velocity and increase their chances of getting a strike.

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