Fun Physics/Calculus Problem

  • Thread starter Thread starter rohit_patel
  • Start date Start date
  • Tags Tags
    Fun
AI Thread Summary
To determine the work done in propelling a 13-ton satellite to heights of 300 miles and 550 miles above Earth, one must consider the gravitational force acting on the satellite at those altitudes. The gravitational force can be calculated using Newton's law of universal gravitation, factoring in the Earth's radius of 4000 miles. The work done is then the integral of the gravitational force over the distance traveled to each height. Calculating this requires setting up the appropriate equations and applying calculus principles. A clear understanding of gravitational forces and calculus integration is essential for solving this problem.
rohit_patel
Messages
3
Reaction score
0
Neglecting air resistance and the weight of the propellant, determine the work done in propelling a 13-ton satellite to a height of 300miles above Earth and 550miles above earth.

Assume Earth has a radius of 4000miles.

Can someone please show me how to do this?
 
Physics news on Phys.org
What did you try so far?
 
Well, I'm not quite sure where to start!
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'A bead-mass oscillatory system problem'
I can't figure out how to find the velocity of the particle at 37 degrees. Basically the bead moves with velocity towards right let's call it v1. The particle moves with some velocity v2. In frame of the bead, the particle is performing circular motion. So v of particle wrt bead would be perpendicular to the string. But how would I find the velocity of particle in ground frame? I tried using vectors to figure it out and the angle is coming out to be extremely long. One equation is by work...
Back
Top