A sled is initially given a shove up a frictionless 28.0° incline. It reaches a maximum vertical height 1.35 m higher than where it started. What was its initial speed?

Solution Step 1 of 3 Orbital period is the time taken by the planet to complete one complete revolution around the star. It is given by, 2 42 3 T = ( G M ) r Where T is the orbital time period, G is the universal gravitational constant, M is the mass of the planet and r is the radius of the orbit. Step 2 of 3 In the given problem, Planet X has the orbital radius R and mass M with orbital time period T X X X RX R, M = MXnd T =200 eaXh days. Planet Y has the orbital radius R and mass MYwith orbital timYperiod T Y R = 4R, M = M and T = Y Y y