A block of mass 5 kg is moving with a speed of 8 m/s. A force of 10 N is applied on it for 3 s . Find the final speed of the block if the force is applied (i) along the motion , (ii) opposite to the motion and (iii) normal to the initial direction of motion of the block.

Explanation

To solve the problem step by step, we will analyze each scenario where a force is applied to a block of mass 5 kg moving at an initial speed of 8 m/s. The force of 10 N is applied for a duration of 3 seconds.

### Given Data:
- Mass of the block (m) = 5 kg
- Initial speed (u) = 8 m/s
- Force (F) = 10 N
- Time (t) = 3 s

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