calculate earths velocity of approach toward the sun when earth in its orbit is at an extremum of the latus rectum through the sun

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Calculate Earths velocity of approach toward the sun when earth in its orbit is at an extremum of the latus rectum through the sun, Take the eccentricity of Earth's orbit to be 1/60 and its Semimajor axis to be 93,000,000

answer : V = 1.624* 10^-5 m/s

Explanation:

First we have to calculate the value of a

a = 93 * 10^6 mile/m  * 1609.344 m

  = 149.668 * 10^8 m

next we will express the distance between the earth and the sun

  --------- (1)

a = 149.668 * 10^8

E (eccentricity ) = ( 1/60 )^2

= 90°

input the given values into equation 1 above

r = 149.626 * 10^9 m

next calculate the Earths velocity of approach towards the sun using this equation

  ------ (2)

Note :

Rc = 149.626 * 10^9 m

equation 2 becomes

(

therefore : V = 1.624* 10^-5 m/s

c

explanation:

an energy transformation flow diagram is shown

where is it ?