A 27-kg child runs at 3.5 m/s and jumps onto a shopping

Last updated: 7/31/2022

A 27-kg child runs at 3.5 m/s and jumps onto a shopping cart, with a mass of 23 kg. Assuming the child rides on the cart after the collision, the speed of the child and shopping cart, just after the child jumps on, is A. zero. B. 2.0 m/s.