An engine starts at 100 rad/s of angular velocity and uniformly accelerates to 400 rad/s in 9.5 s. Find the total angle rotated during this time, in rad. Hint: use rotational kinematics formula. Assume initial angle as zero.
An engine starts at 100 rad/s of angular velocity and uniformly accelerates to 400 rad/s in 9.5 s. Find the total angle rotated during this time, in rad. Hint: use rotational kinematics formula. Assume initial angle as zero.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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![**Problem Statement for Rotational Kinematics**
An engine starts at 100 rad/s of angular velocity and uniformly accelerates to 400 rad/s in 9.5 seconds. Find the total angle rotated during this time, in radians (rad).
**Hint:** Use the rotational kinematics formula. Assume the initial angle is zero.
---
This problem focuses on understanding and applying the principles of rotational kinematics. If initially, the angular velocity (ω₀) is 100 rad/s and the final angular velocity (ω) is 400 rad/s, with a time duration (t) of 9.5 seconds, you can use the following kinematic equation to find the total angle (θ) rotated:
\[ \theta = \omega_0 t + \frac{1}{2} \alpha t^2 \]
Where:
- ω₀ is the initial angular velocity
- ω is the final angular velocity
- α is the angular acceleration
- t is the time duration
Since the problem involves a uniformly accelerated rotation, it's also necessary to determine the angular acceleration (α) using the formula:
\[ \alpha = \frac{\omega - \omega_0}{t} \]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd2932a05-99f3-41c1-989e-7dbca32c3377%2F8b74a4d0-7ae2-4c5d-89b0-f1d5d48afebb%2F1cv6rtu_processed.png&w=3840&q=75)
Transcribed Image Text:**Problem Statement for Rotational Kinematics**
An engine starts at 100 rad/s of angular velocity and uniformly accelerates to 400 rad/s in 9.5 seconds. Find the total angle rotated during this time, in radians (rad).
**Hint:** Use the rotational kinematics formula. Assume the initial angle is zero.
---
This problem focuses on understanding and applying the principles of rotational kinematics. If initially, the angular velocity (ω₀) is 100 rad/s and the final angular velocity (ω) is 400 rad/s, with a time duration (t) of 9.5 seconds, you can use the following kinematic equation to find the total angle (θ) rotated:
\[ \theta = \omega_0 t + \frac{1}{2} \alpha t^2 \]
Where:
- ω₀ is the initial angular velocity
- ω is the final angular velocity
- α is the angular acceleration
- t is the time duration
Since the problem involves a uniformly accelerated rotation, it's also necessary to determine the angular acceleration (α) using the formula:
\[ \alpha = \frac{\omega - \omega_0}{t} \]
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