What is the escape velocity of a satellite launched from the earth’s surface? (Take g as 10ms\(^{-2}\) and the radius of the earth as 6.4 × 10\(^6\)m)

a

7.80 × 10kms-1

b

11.2 × 10kms-1

c

3.56 × 107ms-1

d

6.00 × 107ms-1

e

1.20 × 108ms-1

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Correct Option
b

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Discussions (8)

munachi99999
1 year ago

To calculate the escape velocity of a satellite launched from the Earth's surface, we can use the formula for escape velocity:




Where:
-
is the escape velocity,
- is the acceleration due to gravity (approximately
),
- is the radius of the Earth (approximately
).

Now, let's plug in the values into the formula:

1. Substitute and :






2. Calculate the value inside the square root:





3. Now, take the square root:





4. Approximating the square root:



Therefore, the escape velocity for a satellite launched from the Earth's surface is approximately 11,313 m/s.

favemmanuel
1 year ago

pls how can we solve this kind of question,you know the is no squareroot in jamb calculation .

vykin
7 years ago

please i need help with the question in physics

Joshua.king
3 years ago

The answer for the question is not in the option

Joywwe
2 years ago

the answer to this question is 8×10^3

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