Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
the total energy of the satelite revolving the earth is negetive. explain the statement. PLS!!!!!!
net centripital force = mv2/r (r is radius of orbit) centripital force is provided by gravitational force so GMm/r2 = mv2/r mv2 = GMm/r mv2/2 = GMm/2r KE = GMm/2r ................1 potential energy of particle = -GMm/r ............2 total energy = PE + KE = GMm/r - GMm/2r TE =-GMm/2r TE < 0 hence proved
net centripital force = mv2/r (r is radius of orbit)
centripital force is provided by gravitational force so
GMm/r2 = mv2/r
mv2 = GMm/r
mv2/2 = GMm/2r
KE = GMm/2r ................1
potential energy of particle = -GMm/r ............2
total energy = PE + KE = GMm/r - GMm/2r
TE =-GMm/2r
TE < 0
hence proved
IT IS SIMILAR TO THE MOTION OF AN ELECTRON INA ORBIT.WEKNOW THAT THE POTENTIAL ENERGY OF AN ELECTRON IS NEGATIVE AS THE FORCE IS ATTRACTIVE.AND ALSO THE POTENTIAL ENERGY IS DOUBLE OF K.E,TOTAL ENERGY. SO,TOTAL ENERGY IS NEGATIVE IN MAGNITUDE
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -