Problem: Dario, a prep cook at an Italian restaurant, spins a salad spinner 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration.1. What is the angular acceleration of the salad spinner as it slows down?2. How long does it take for the salad spinner to come to rest? (s)
FREE Expert Solution
We'll use the kinematic expression:
1. Solving for α:
Angular velocity:
Angular displacement:
Therefore, initial angular velocity:
ω0 = (n2π)/t = (20)(2π)/5.00 = 8π rad/s
θ = (6.00)(2π) = 12π
Problem Details
Dario, a prep cook at an Italian restaurant, spins a salad spinner 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration.
1. What is the angular acceleration of the salad spinner as it slows down?
2. How long does it take for the salad spinner to come to rest? (s)
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Equations of Rotational Motion concept. You can view video lessons to learn Equations of Rotational Motion. Or if you need more Equations of Rotational Motion practice, you can also practice Equations of Rotational Motion practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Dwyer's class at UNH.