Experience the power of community-driven knowledge on IDNLearn.com. Our platform offers detailed and accurate responses from experts, helping you navigate any topic with confidence.

A roller blader (84 kg) is travelling at 19 m/s [E]. A 21.2 kg child is riding a 7.8 kg bike at a speed of 6
m/s [W]. The roller blader and the cycling child collide in what can be assumed to be an elastic
collision. What are the final velocities of the roller blader and the cycling child after the collision?