4) Two objects of masses 100 g and 200 g are moving along the same line with velocities of 2 m/s and 1 m/s respectively. They collide and after the collision, the first object moves at a velocity of 1.67m/s. Determine the velocity of second object.
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Answers & Comments
Answer:
1.165m/s is the velocity of second object.
Explanation:
M1=100g
M2=200g
u1=2m/s
U2=1m/s
v1=1.67m/s
v2=x
we have,
m1u1+m2u2=m1v1+m2v2
100×2+200×1=100×1.67+200×x
200+200=167+200x
400=167+200x
400-167=200x
233=200x
x=233/200
x=1.165m/s
Therefore,1.165m/s is the velocity of the second object.