## Essential University Physics: Volume 1 (4th Edition)

6100 We find the orbit speed of the moon to see what the puck needs to go into orbit: $v_{orbit}=\sqrt{GM}{R}$ $v_{orbit}=\sqrt{\frac{(6.67\times10^{-11})(7.35\times10^{22})}{{1737\times10^3}}}=1680 \ m/s = 6050 \ km/h$ The pucks are not going near this fast, so there is no chance they will go into orbit.