Obtain an expression for torque acting on a rotating body with constant angular acceleration. Hence state the dimensions and SI unit of torque.

Explanation

To derive the expression for torque acting on a rotating body with constant angular acceleration, we can follow these steps:

### Step 1: Understand the Concept of Torque
Torque (\( \tau \)) is defined as the measure of the force that can cause an object to rotate about an axis. The torque is given by the formula:
\[ \tau = R \times F \]
where \( R \) is the position vector (distance from the axis of rotation to the point of application of the force) and \( F \) is the force applied.
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