A playground ride consists of a disk of mass M =32 kg and radius R-1.7 m mounted on a low-friction axle (see figure below). A child of mass m =24 kg runs at speed V Ξ2.7 m/s on a line tangential to the disk and jumps onto the outer edge of the disk.Calculate the change in linear momentum of the system consisting of the child plus the disk (but not including the axle), from just before to just after impact. (Assume the child is initially moving in the positive direction. Indicate the direction with the sign of your answer.)