Answer this. C. Question
Given,
the mass of bullet= 10g=0.01kg
velocity of bullet=1.5m/s
mass of plank=90g=0.09kg
Total momentum before collision= mass of plank into velocity
0.01*1.5+0.09*0=0.015kgm/s
According to law of conservation of momentum,
total momentum before collision=total momentum after collision
0.015kg m/s=0.1 v kg m/s
Thus, velocity acquired by the plank and the bullet=0.15m/s.
the mass of bullet= 10g=0.01kg
velocity of bullet=1.5m/s
mass of plank=90g=0.09kg
Total momentum before collision= mass of plank into velocity
0.01*1.5+0.09*0=0.015kgm/s
According to law of conservation of momentum,
total momentum before collision=total momentum after collision
0.015kg m/s=0.1 v kg m/s
Thus, velocity acquired by the plank and the bullet=0.15m/s.