Vai = initial velocity A = 1 m/s
Ma = mass A = 0.40 kg
Vbi = initial velocity B = - 1 m/s
Mb = mass B = 0.20 kg
Product of mass and velocity = momentum (p)
Momentum is conserved.
• a. True
• b.
Ma Vai + Mb Vbi = (Ma+ Mb) Vfx
(0.40 kg x 1 m/s ) + ( 0.20 kg x - 1 m/s ) = ( 0.40 kg + 0.20 kg ) Vfx
0.40 kgm/s - 0.20kgm/s = 0.60kg Vfx
0.20 kgm/s = 0.60kg Vfx
(0.20 kgm/s ) /0.60 kg = Vfx
Vfx = 0.3334 m/s