(17%) Problem 6: An object of mass m is launched from a planet of mass M and radius R. - @ 50% Part (a) Derive and enter an expression for the minimum launch speed needed for the object to escape gravity, i.e. to be able to just reach r = co. & 50% Part (b) Calculate this minimum launch speed (called the escape speed), in meters per second, for a planet of mass M = 9.98 x 10 kg and R=1962x10" km. Grade Summary el T Deductions Potential 100% sin() cosO | tmQ | x| ([)]7]8]9 Submissions cotan() asin) | acosQ | E| 1441 4]5]6 Attempts remaining: 30 = (0% per attempt) atan() acotan() | Smh() | | 123 detailed view cosh() tanh() | cotanh() |+]-] o Degrees Radians _I @I Submit | | | 1 give up! Hints: 0 fora deduction. Hints remaining: 0 Feedback: deduction per feedback