Two dogs, Rover and Fido, run on a level frictionless surface. River runs eastward with a momentum of 24 kg . m/s, and Fido runs northward with momentum 10 kg . m/s. They make a sudden perfectly inelastic collision. What is the magnitude of their combined momentum after the collision

The magnitude of their combined momentum after the collision  is 26 kg-m/s.

Explanation:

Given that,

Two dogs, Rover and Fido, run on a level frictionless surface.

Rover runs eastward with a momentum of 24 kg-m/s and Fido runs northward with momentum 10 kg-m/s. We need to find the magnitude of their combined momentum after the inelastic collision.

For inelastic collision, momentum remains conserved. The net momentum is given by :

So, the magnitude of their combined momentum after the collision  is 26 kg-m/s. Hence, this is the required solution.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )