A body slipping on a rough horizontal plane moves wioth a deceleationof `4.0 m/s^`. What is cofficient of kineic friction between the block and the plane?

Explanation

To solve the problem, we need to find the coefficient of kinetic friction (μ) between a block and a rough horizontal plane, given that the block is decelerating at a rate of 4.0 m/s².

### Step-by-Step Solution:

1. **Understand the Forces Acting on the Block**:
- The block is on a horizontal plane, so the forces acting on it include the gravitational force (weight) acting downwards and the normal force acting upwards.
- The frictional force, which opposes the motion of the block, is what causes the deceleration.

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