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Home Q & A Board Science-Related Homework Help Physics
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tonydahtiger tonydahtiger
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11 years ago
An object of mass m = 2 kg moves with a speed of Vo = 30 m/s on a horizontal,
frictionless surface. It collides with a stationary object with identical mass m, and the two masses stick together.

(a.) What is the velocity of the masses immediately after the collision?
(b.) After the collision, the masses start sliding up a hill. What height h do they reach
before they momentarily stop?

any help is appreciated!
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2 Replies
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#1
11 years ago
Conservation of momentum.So if the final velocity is V
     then  2x30=4xV
                 V=15m/sec
      The height reached   h=v^2/2g=15X15/2x9.8=11.48m
IVAN
Answer accepted by topic starter
smperrysmperry
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#2
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11 years ago
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