Compute the following problem
Problem- A comet is observed to pass 1.50 x 108 m from the surface of the Sun. The Sun's radius is 6.96 x 108 m.
Part 1- What is the speed of the comet at this point, if its speed when passing the Earth's orbit, 1.50 x 1011m from the Sun's center, is 2 5km/s?
I want experts help to find the speed of the comet at given point.