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A rocket has been fired upwards to launc...

A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad

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To solve the question regarding the two forces acting on a rocket immediately after it leaves the launching pad, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Forces Acting on the Rocket**: - When a rocket is launched, it experiences several forces. However, we need to focus on the two main forces acting on it immediately after it leaves the launch pad. 2. **Gravitational Force (Weight)**: ...
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The satellites when launched from the earth are not given the orbital velocity initially, a multistage rocket propeller carries the spacecraft up to its orbit and during each stage rocket has been fired to increase the velocity to acquire the desired velocity for a particular orbit. The last stage of the rocket brings the satellite in circular/elliptical (desired) orbit. Consider a satellite of mass 150 kg in a low circular orbit. In this orbit, we cannot neglect the effect of air drag. This air opposes the motion of satellite and hence the total mechanical energy of earth-satellite system decreases. That means the total energy becomes more negative and hence the orbital radius decreases which causes the increase in KE When the satellite comes in the low enough orbit, excessive thermal energy generation due to air friction may cause the satellite to burn up. Based on the above information, answer the following questions. If due to air drag, the orbital radius of the earth decreases from R to R-/_\R, /_\Rlt ltR , then the expression for increase in the orbital velocity /_\v is

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LAKHMIR SINGH & MANJIT KAUR-FORCE AND PRESSURE.-EXERCISE
  1. If we release a magnet held in our hand, it falls to the ground. The f...

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  2. Which of the following force is utillised in reducing air pollution by...

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  3. The same force F acts on four different objects having the areas given...

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  4. Which of the following represent correct values for the normal atmosph...

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  5. Which of the following does not work on the existence of atmospheric p...

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  6. The magnitude of force is expressed in the unit of force called:

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  7. Which of the following change appreciably when a batsman hits a moving...

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  8. Which of the following is not an effect of force ?

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  9. Which of the following is not a non - contact force ?

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  10. Which of the following scientists gave the idea of the existance of gr...

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  11. Some mustard oil is kept in a beaker. It will exert pressure :

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  12. A pressure of 10 kPa acts on an area of 0.3 m^(2). The force acting on...

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  13. The magnitude of atmospheric pressure is equal to the pressure exerted...

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  14. The atmospheric pressure is usually measured in the unit of :

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  15. When a force of 5 N acts on a surface, it produces a pressure of 500 P...

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  16. Two tiny holes are made in a plastic bucket, one near the middle part ...

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  17. What is common in the working of the devices such as drinking straw, s...

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  18. A rocket has been fired upwards to launch a satellite in its orbit. Na...

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  19. One student says that water exerts pressure on the bottom of the bucke...

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  20. Name the forces acting on a plastic bucket containing water held above...

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