Two objects of masses 1 kg and 2 kg moving in the same direction with velocities 2 m/s and 1 m/s collide with each other. After collision they stick together. Calculate the velocity of the two objects after collision.
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Answered by
0
Answer:
Using Momentum Conservation:
⇒m
1
u
1
+m
2
u
2
=m
1
v
1
+m
2
v
2
⇒1(21)+2(−4)=1(1)+2v
2
⇒v
2
=6m/s
Coefficient of Restitution:
e=
u
1
−u
2
v
2
−v
1
=
21+4
6−1
=0.2
Kinetic Energy lost:
=
2
1
m
1
(v
1
2
−u
1
2
)+
2
1
m
2
(v
2
2
−u
2
2
)
=
2
1
1(1−441)+
2
1
2(36−16)
=−200J
Impulse of Force:
I=(Δmv)
1
=1(1−21)=−20
=(Δmv)
2
=2(6−(−4))=20
Answered by
1
Answer:
I am not really sure about the answer but if we go by the concept, that's how you'll find it.
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