Physics, asked by deeptiaggarwal53, 8 months ago

a force acts upon the body of mass 20 kilogram initially at rest for 6 seconds after which the force ceases. the body cover 60 metre in next 5 seconds with a uniform velocity. find the magnitude of the force
answer is 40 Newton how?

Answers

Answered by s06002

Answer:

Initial velocity of the body = 0 m

Final velocity of the body =

Now We know,

Acceleration =

By Newton's second law of motion,

F = ma

Thus the magnitude of Force is 40N.

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TheVanquisher Genius

Answer:

The magnitude of Force is 40N.

Explanation:

Given :

Initial velocity of the body = 0 ms⁻¹

To Find :

The magnitude of the force.

Solution :

First Step :

Final velocity of the body.

We know that :

So,

Second Step :

Find It's Accelration.

We know that :

So,

Now,

We have :

Initial velocity of the body = 0 ms⁻¹

Final Velocity of the body = 12 ms⁻¹

Accelation = 2 ms⁻²

Third Step :

Use Newton's second law of motion.

Now,

We know that :

Newton's second law of motion :

Now,

∴ The magnitude of Force is 40N.

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Answered by Anonymous

Explanation: