Spheres A (mass 0.020 kg), B (mass 0.030 kg), and C (mass 0.050 kg), are each approaching the origin as they slide on a frictionless air table. The initial velocities of A and B are 1.50 m/s and 0.50 m/s. All three spheres arrive at the origin at the same time and stick together.(adsbygoogle = window.adsbygoogle || []).push({});

a) What must the x-component of the initial velocity of C be if all three objects are to end up moving at 0.50 m/s in the +x-direction after the collision?

b) What must the y-component of the initial velocity of C be if all three objects are to end up moving at 0.50 m/s in the +x-direction after the collision?

c) If C has the velocity found in parts (A) and (B), what is the change in the kinetic energy of the system of three spheres as a result of the collision?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: X-y components after a collision

**Physics Forums | Science Articles, Homework Help, Discussion**