A constant retarding force of 50 N is applied to a body of mass 20 kg moving initially with a speed of `15ms^(-1)` How long does the body take to stop ?

Explanation

To solve the problem, we need to determine how long it takes for a body to stop when a constant retarding force is applied. Here’s the step-by-step solution:

### Step 1: Identify the given values
- Initial speed (u) = 15 m/s
- Final speed (v) = 0 m/s (since the body comes to a stop)
- Mass of the body (m) = 20 kg
- Retarding force (F) = 50 N

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