Two objects with masses m1 = 2kg and m2 = 4kg collide and stick together as shown in the figure. The speed of m2 before the collision is V4 = 1.5m/s. The speed of the compound object after the collision is vf = 2m/s. Find the speed of m1 before the collision.

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Chapter11: Energy And Its Conservation
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Problem 44A
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Two objects with masses mį =
2kg and m2 = 4kg collide and stick together as shown in the figure. The speed of m2 before the collision is
V2i = 1.5m/s. The speed of the compound object after the collision is vf = 2m/s. Find the speed of m1 before the collision.
m
Vi
m1 + m2
Before
After
Select one:
O a. Vii = 9m/s
O b. vii = 4m/s
O c. Vii = 2m/s
d. Vii = 10m/s
O e. Vii = 8m/s
Transcribed Image Text:Two objects with masses mį = 2kg and m2 = 4kg collide and stick together as shown in the figure. The speed of m2 before the collision is V2i = 1.5m/s. The speed of the compound object after the collision is vf = 2m/s. Find the speed of m1 before the collision. m Vi m1 + m2 Before After Select one: O a. Vii = 9m/s O b. vii = 4m/s O c. Vii = 2m/s d. Vii = 10m/s O e. Vii = 8m/s
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