Gliders momentum Gliders C and D, of mass 2 kg and 4 kg, respectively, collide o

Question

Gliders momentum

Gliders C and D, of mass 2 kg and 4 kg, respectively, collide on a frictionless track. Glider C initially moves to the right with speed 0.6 m/s relative to the track, while glider D is at rest. After the collision, glider C moves to the left with speed 0.2 m/s. System S consists of gliders C and D. 4. C 0.6 m/s 2 kg 4 kg D before collision after collision a. In the table at right, draw the momentum vectors Before collision After collision of glider C, glider D, and system S before and after the collision. Is the momentum of system S before the collision PD ++4H the same as it is after the collision? Explain. PsystemH 1 unit = 0.4 kg-m/s Use your results from part a to determine the magnitude and direction of the velocity of glider D relative to the track after the collision. Explain. b.

Explanation / Answer

1) conservation momentum

m1u1+m2u2=m1v1+m2v2

4v2-0.4=2*0.6

4v2=1.6

v2=0.4 m/sec

if the refference frame moving with constant velocity that is non acceleration frames( inertial frames)

momentum must be coservative after and before the collision

momentum must be conserved in both elastic and inelastic collisions

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