Solve the below problem:
Q: A space probe is describing a circular orbit of radius nR with a speed v0 about a planet of radius R and center O. As the probe passes through point A, its speed is reduced from v0 to 0 ßv0 , where ß < 1,="" to="" place="" the="" probe="" on="" a="" crash="" trajectory.="" express="" in="" terms="" of="" n="" and="" ß="" the="" angle="" aob,="" where="" b="" denotes="" the="" point="" of="" impact="" of="" the="" probe="" on="" the="">
