Question

An object (A) of mass m A = 29.0 kg is moving in a direction that makes angle of 40° north of east with a speed v A = 5.10 m/s, while object (B) of mass m B = 17.5 kg is moving due north with a speed v B = 7.85 m/s. The two objects collide and stick together in a completely inelastic collision. Find the magnitude of the final velocity of the two-object system after the collision.

An explosion breaks a 26.0-kg object into three parts. The object is initially moving at a velocity of 22.0 m/s due north. Part (1) has a mass m11 = 3.80-kg and a velocity of 58.0 m/s due west. Part (2) has has a mass m22 = 4.70-kg and a velocity of 70.0 m/s due north. What is the magnitude of the velocity of part (3)?

Answer 1