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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 about the forces acting on a rocket immediately after it leaves the launching pad, we can follow these steps: ### Step 1: Identify the Forces Acting on the Rocket When a rocket is fired upwards, two primary forces act on it immediately after leaving the launching pad. These are: 1. **Gravitational Force (Weight)**: This force acts downward towards the center of the Earth. It is the force of gravity acting on the mass of the rocket. 2. **Thrust Force**: This is the force exerted by the rocket engines as they expel fuel downwards. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Thus, when the rocket expels fuel downwards, it experiences an upward thrust. ...
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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. It has been mentioned in the passage that as r decreases, E decreases but K increases. The increase in K is [ E = total mechanical energy, r = orbital radius, K= kinetic energy ]

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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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MTG IIT JEE FOUNDATION-FORCE AND PRESSURE -NCERT SECTION
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  8. The force applied by the archer to stretch the bow is an example offor...

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  11. In the following situations identify the agent exerting the force and ...

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  12. Taking out paste from a toothpaste tube.

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

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