The mass of the Earth is 6.0x10^24 kg and its radius is 6.4x10^6m, calculate the orbital speed of the moon around the earth, the orbit of the moon is a circle of approximate radius of 60R where R is the radius of the earth and a mass m.

M=6.0x1024kg create info list of information given in the question converting all values to SI unitsR=6.4x106mF=GMm/r2 F=mv2/r write down any necessary equations Force due to the gravitational attraction of the moon and the earth is equal to the centripetal force experienced by the moon due to the earth.equate the two equations and rearrange for vmv2/r = GMm/r2v=sqrt(GM/r) G=Gravitational Constant 6.67x10-11Plug in the numerical values on the calculatorv=1020.87 calculate to appropriate number of sig figs and add unitsv=1000ms-1

Answered by Emma D. Physics tutor

5675 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Calculate the kinetic energy of a car of mass 1.0*10^3kg moving at speed of 20ms^-1.


A bullet is fired horizontally from a gun at a height of 1.5m at 280m/s. Calculate the time taken for it to hit the ground. A second bullet is fired from an adjacent gun at 370m/s. Calculate the distance it travel before the first bullet hits the ground.


A railway car of mass m1 travelling at a velocity of v1 collides with a second car of mass m2 travelling at v2 and the two join together. What is their final velocity?


Explain Newton’s law of Gravitation


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy