A fly wheel is accelerated uniformly from rest and rotates through 5 rad in the first second. The angle rotated by the fly wheel in the next second, will be :

Options

A. 7.5 rad
B. 15 rad
C. 20 rad
D. 30 rad

Explanation

To solve the problem step by step, we will use the equations of motion for rotational motion.

### Step 1: Understand the given information
- The flywheel starts from rest, which means the initial angular velocity (\( \omega_0 \)) is 0.
- The angle rotated in the first second (\( \theta_1 \)) is given as 5 radians.

### Step 2: Use the equation of motion for angular displacement
The equation for angular displacement under uniform acceleration is:
...