A constant force acts on object of mass 5 kg for a duration of 2s It increases the object's velocity from `3m//s` to `7m//s` Find the magnitude of the applied force. Now if the force were applied for a duration of `5s` what would be the final velocity of object?

Explanation

To solve the problem step by step, we will first find the magnitude of the applied force and then determine the final velocity when the force is applied for a longer duration.

### Step 1: Identify the given values
- Mass of the object (m) = 5 kg
- Initial velocity (u) = 3 m/s
- Final velocity (v) = 7 m/s
- Time duration (t) = 2 s

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