A block is placed on an inclined plane. The angle of inclination of the plane is such that the block slides down the plane at a constant speed. The coefficient of kinetic friction is

Options

A. `sin theta`
B. `cos theta`
C. `cot theta`
D. `tan theta`

Explanation

To solve the problem of finding the coefficient of kinetic friction for a block sliding down an inclined plane at a constant speed, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Forces Acting on the Block**:
When a block is placed on an inclined plane, the forces acting on it are:
- The gravitational force (weight) \( Mg \) acting vertically downwards.
- The normal force \( N \) acting perpendicular to the surface of the incline.
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