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JEE Main 2024

09-04-24 S1

Question

An astronaut takes a ball of mass $m$ from earth to space. He throws the ball into a circular orbit about earth at an altitude of 318.5 km . From earth's surface to the orbit, the change in total mechanical energy of the ball is $x \frac{G_e m}{21 R_e}$. The value of $x$ is (take $\mathrm{R}_{\mathrm{e}}=6370 \mathrm{~km}$ ):

Select the correct option:

A

11

B

9

C

12

D

10

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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JEE Main

Physics

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