Assume that the earth goes round the sun in a circular orbit

Last updated: 6/7/2023

Assume that the earth goes round the sun in a circular orbit with a constant speed of 30 km s a The average velocity of the earth from 1st Jan 90 to 30th June 90 is zero b The average acceleration during the above period is 60 km s 2 c The average speed from 1st Jan 90 to 31st Dec 90 is zero d The instantaneous acceleration of the earth points towards the sun