What is the speed of each…

Physics Questions

What is the speed of each seat on a rotating amusement park ride, which has a circular platform 7.33 m in diameter and 10 kg seats suspended by 2.45 m massless chains making an angle of 43.7° with the vertical? (Assume acceleration due to gravity is 9.8 m/s².)

Short Answer

To calculate the speed of each seat on a circular platform with a diameter of 7.33 meters, first find the radius (3.665 m) and then the angular velocity (1.614 rad/s) using the formula ω = √(g / r). Finally, the speed of each seat is calculated to be approximately 5.912 m/s using the formula v = rω.

Step-by-Step Solution

Step 1: Calculate the Radius

To begin, we need to determine the radius of the circular platform. The radius (r) is half of the diameter. In this case, the diameter is 7.33 meters, so we calculate the radius as follows:

  • r = 7.33 m / 2 = 3.665 m

Step 2: Determine the Angular Velocity

Next, we find the angular velocity (ω) using the formula: ω = √(g / r), where g is the acceleration due to gravity, approximately 9.8 m/s². By substituting the values, we can calculate the angular velocity:

  • œâ = ‚àö(9.8 / 3.665) = 1.614 rad/s

Step 3: Calculate the Speed of Each Seat

Finally, we can determine the speed of each seat (v) using the formula: v = rω. By substituting the previously calculated radius and angular velocity, we can find the speed:

  • v = 3.665 m * 1.614 rad/s = 5.912 m/s

Related Concepts

Radius

The distance from the center of a circle to any point on its circumference, which is half of the diameter.

Angular velocity

The rate of rotation of an object around an axis, measured in radians per second (rad/s).

Speed of each seat

The linear speed at which each seat moves along the circular path, calculated using the radius and angular velocity.

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