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2 votes
A 7.0 kg cannonball flying rightward at 12 hits a stationary rock. The cannonball keeps moving in the same

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direction at 2.0 after the collision but sends the rock flying at 14 towards right
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What is the mass of the rock?

User JMS
by
5.8k points

1 Answer

3 votes

Answer:

5.0 kg

Step-by-step explanation:

use the equation; (m1v1i) + (m2v2i) = (m1v1f) + (m2v2f)

User Numbercruncher
by
5.8k points