Need help on rotationalvelocity problem asap

  • Thread starter Crazedkid
  • Start date
In summary, the problem involves a windmill with 8 blades rotating at an angular speed of 1.25 radians/second. The opening between successive blades is equal to the width of a blade. A golf ball with a diameter of 4.50*10^-2m is passing by one of the blades and the question is what is the minimum speed of the ball to avoid being hit by the next blade. The only given information is the number of blades and the angular speed. No measurements of the windmill are provided.
  • #1
Crazedkid
7
0
please I need help on rotational velocity problem for tomorow dec 7

ok i need help on where to begin this problem because i am lost. any help would be appreciated thank you

A windmil has 8 blades and rotates at an angular speed of 1.25 radians/second. the opening between succesive blades is equal to the width of of a blade. a golf ball of diameter 4.50*10 -2m is just passing by one of the rotating blades. what is the minimum speed of the ball so that it will not be hit by the next blade?

thnk you for your time
 
Last edited:
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  • #2
hmm - is that all the info u r given?
 
  • #3
yes that is all we are given
 
  • #4
what about the measurements of the windmill?
 
  • #5
no measurments given
 

What is rotational velocity?

Rotational velocity is the measurement of how fast an object is rotating around a central axis. It is often measured in revolutions per minute (RPM) or radians per second (rad/s).

Why is rotational velocity important?

Rotational velocity is important because it helps us understand the motion of objects that are rotating, such as wheels, gears, and planets. It also plays a crucial role in various fields of science, including physics, engineering, and astronomy.

What factors affect rotational velocity?

The factors that affect rotational velocity include the mass of the object, the distance from the axis of rotation, and any external forces acting on the object. Additionally, the shape and size of the object can also impact its rotational velocity.

How do you calculate rotational velocity?

Rotational velocity can be calculated by dividing the angular displacement (how much the object has rotated) by the time it took to rotate, or by multiplying the angular speed (how fast the object is rotating) by the radius of the object.

Can rotational velocity be changed?

Yes, rotational velocity can be changed by altering the factors that affect it. For example, increasing the distance from the axis of rotation or adding external forces can increase the rotational velocity of an object.

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