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Answer:

⇝ Appropriate Question :-

A body of mass 10 kg is moving with a velocity 10 m/s. When a force is applied on it, after 25 sec its velocity become 30 m/s . Find the magnititude of Force applied.

⇝ Given :-- A body of mass 10 kg is moving with a velocity 10 m/s.

- When a force is applied on it for 25 sec its velocity become 30 m/s.

- Magnitude of Force applied.

Here,

- Initial Velocity = u = 10 m/s

- Final Velocity = v = 30 m/s

- Time = t = 25 s

Let Acceleration of Body be = a m/s²

❒ We Have 1st Equation of Motion as :

✧ Putting Values In 1st Equation of Motion ;

❒ As We Know that :

✧ Putting Values In Above Formula ;

Therefore,

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